How to get a research internship at an IIT, NIT or other top college, even if you study somewhere else

1. Why a research internship matters

A research internship is a few weeks (usually 6 to 10) spent working in a professor's lab on a real research problem. For an undergraduate or master's student it is one of the most valuable things you can do, because it gives you things that marks alone cannot:

• Proof that you can do research. Admissions committees for MS, PhD and research jobs want evidence, not interest. A completed project, a report, a poster or a paper is that evidence.
• A strong letter of recommendation. A letter from a professor who supervised your work, especially at an IIT, NIT, IISER or IISc, carries real weight in applications in India and abroad.
• Clarity. Many students discover in their internship whether they actually enjoy research, and which area they want to pursue. That is worth knowing before you commit to a five-year PhD.
• Skills and exposure. You learn to read papers, run experiments, use lab equipment or research code, and work with PhD students who are a few years ahead of you.
• A network. The PhD students and postdocs you work with often become your best source of advice for years.

The good news: you do not need to study at an IIT to intern at one. Professors take students from Tier-2 and Tier-3 colleges, state universities and private colleges every year. What they look for is evidence that you are genuinely interested in their work and able to contribute. A well-written email is how you show that.

2. The two ways in: formal programmes and emailing professors

Route 1: Formal summer programmes

Several institutes and academies run structured summer research programmes with an online application, a selection process and usually a stipend. Examples that have run in recent years include:

• The Academies' Summer Research Fellowship Programme (Indian Academy of Sciences, INSA and NASI together), which places students with scientists across India.
• SURGE at IIT Kanpur, SPARK at IIT Roorkee, the Summer Fellowship Programme at IIT Madras and the Summer Research Internship Programme (SRIP) at IIT Gandhinagar.
• Programmes at IISERs, IISc, research labs (such as CSIR labs) and many NITs, often announced on their websites around December and January.

These are worth applying to, but they are very competitive, the seats are limited, and you often cannot choose your exact professor. Names, dates and rules change from year to year, so always check the official website of each programme for the current call.

Route 2: Emailing professors directly

This is the traditional route, and it is how a large share of outside students actually get their internships. You identify professors whose work matches your interests, write to each of them personally, and ask whether they could take you as an intern. Many professors prefer this, because they get to pick students who already care about their specific research.

The rest of this guide is about Route 2: doing it properly, from finding professors to the day you start.

3. When to start: the timeline

Summer internships at Indian institutes usually run from May to July. Professors fix their summer interns early, often by March. The most common mistake is starting in April, when most spots are already taken.

Winter internships (December – January) follow the same pattern, shifted: email in August and September. They are shorter and fewer professors offer them, but competition is lower too.

Check your own college calendar first. If your semester ends in late May, ask for a start date in June, and say so in your email. A professor would much rather know your real dates than be surprised later.

4. Prepare before you write to anyone

A professor reading your email is asking one question: "Would this student be useful in my lab, and are they serious?" You need a few things ready before you can answer that convincingly.

Pick one or two areas, not ten

"I am interested in AI, IoT, blockchain, robotics and VLSI" tells the professor you are not interested in anything in particular. Pick one main area (for example, computer vision, power electronics, computational fluid dynamics, protein biochemistry) and at most one related area. Your whole search and every email will be built around it.

Have at least one piece of real work

It does not need to be published. It needs to be yours and specific. Good examples:

• A course or final-year project where you did a real part of the work, with a measurable result ("reduced error from 14% to 9%").
• A reproduction of a known paper's results, written up on GitHub with what worked and what did not.
• A lab experiment you designed or extended beyond the standard practical.
• A competition, hackathon or design project with a clear technical contribution from you.

Get the basics in place

• A one-page research CV as a PDF (see section 12).
• A professional email address. Use your college email if it works reliably, or a plain personal address like firstname.lastname@… Never cooluser1999@….
• Optional but helpful: a GitHub profile with tidy repositories, a simple personal web page, or a Google Scholar page if you have any publications.
• Your transcript or marksheet as a PDF, ready if someone asks.

5. How to find the right professors

This is the step most students rush, and it is the one that matters most. A brilliant email to the wrong professor gets no reply. A decent email to a professor whose work truly matches yours often does.

Step 1: Make a list of institutes

Start with the IITs, NITs, IISERs, IISc, IIITs and research labs that are strong in your area. The NIRF rankings (published by the Ministry of Education) are a reasonable starting point for which institutes are strong in engineering, science or management. Do not ignore newer IITs and NITs: their professors are often actively building labs and more open to interns.

Step 2: Go to the department's faculty page

Every institute website has a list of departments, and each department has a "Faculty" or "People" page with names, photos, research areas and links to personal pages. For example, you would open the institute's website, then Academics → Departments → Electrical Engineering → Faculty.

Go through the list and open the profile of everyone whose listed research areas overlap with yours. Remember that professors in other departments can also match: a computer vision researcher might sit in Electrical Engineering, a biomaterials researcher in Chemical Engineering, a data scientist in Mathematics.

Step 3: Read their personal or lab page

The one-line research area on the department page is not enough. Open the professor's personal page or lab website and look for:

• Current projects and what the lab is working on now, not ten years ago.
• An "Openings", "Join us" or "Prospective students" section. Many professors state clearly whether they take interns and how they want to be contacted, for example "Please put [Internship] in the subject line" or "I do not take summer interns." Always follow these instructions exactly. Ignoring them is the fastest way to get your email deleted.
• Current students and past interns. If they list past summer interns from other colleges, that is a very good sign.

Step 4: Look at their recent papers

Search the professor's name on Google Scholar, Semantic Scholar or DBLP (for computer science). Sort by year and look at the last two or three years. Read the titles and abstracts of two or three recent papers. For the one closest to your interest, read the introduction and conclusion properly.

You are looking for a specific, honest connection you can mention in your email, for example:

• "Your 2025 paper on low-light image enhancement uses a lightweight network; my final-year project tried to make a similar model run on a Raspberry Pi."
• "I noticed your group's recent work on biodegradable scaffolds uses electrospinning, which I worked with in my materials lab course."

Step 5: Find their correct email address

Use the email address listed on the institute's official faculty page or the professor's own page. Some pages write addresses as "name [at] iitx [dot] ac [dot] in" to avoid spam; write it out correctly. Never guess an address, and never use an address from a random website.

Who to prioritise

• Assistant professors (often newer faculty) are usually building their labs and are more likely to reply and to give you real responsibility.
• Professors with active funded projects (mentioned on their page) are more likely to have work and sometimes a stipend.
• Very famous senior professors receive hundreds of emails. Include a few if your work is a strong match, but do not build your whole list around them.

6. Build and organise your list

Keep a spreadsheet. It stops you from emailing the same professor twice, helps you follow up on time, and lets you see which kind of professor replies. Here is a simple layout that works:

(These names are illustrative examples, not real professors.)

How many professors should you email?

Reply rates for cold emails to professors are low: it is normal for most emails to get no answer, because professors are busy, not because you are bad. Students who succeed typically email somewhere between 40 and 80 professors over two to three months, each one personally. Going far beyond that usually means the emails are getting less personal, which lowers the reply rate further.

Send in batches of 8 to 15 per week. That gives you time to research each professor properly, and you can improve your email based on early replies.

7. How to write the email

A good first email to a professor is short, specific and easy to answer. It should be readable in under a minute. Aim for 150 to 250 words, in plain text, with no fancy formatting.

The structure that works

1. Greeting. "Dear Prof. Verma," or "Dear Dr. Iyer,". Use their surname and correct title. Avoid "Respected Sir/Madam", "Dear Sir" and first names.
2. Who you are (1–2 sentences). Your year, degree, branch and college. Mention a relevant strong point if you have one (CGPA if it is good, a relevant rank, a key course).
3. Why them (2–3 sentences). The specific connection between their recent work and your interest. This is the most important part of the email. It proves you are not mass-mailing.
4. What you bring (2–3 sentences). Your most relevant project or skill, with a concrete result. Link to code, a report or a demo if you have one.
5. The ask (1 sentence). Clearly ask whether they could take you as a research intern, and give your exact available dates.
6. Attachments and close. Say what is attached (usually just your CV), thank them, and sign off with your full name, college and phone number.

Tone

• Polite and confident, not desperate. "I would be grateful for the opportunity" is fine; "please sir, this is my dream, I will do any work" is not.
• Plain, simple English. Professors value clarity far more than big words.
• Never copy-paste a paragraph of praise ("your esteemed research is world-renowned…"). It adds nothing.

Write it yourself and make each one personal

It is fine to have a basic structure you reuse. But the "why them" part must be written fresh for every professor, and you must double-check the name, title and institute in every email. Sending "Dear Prof. Sharma" to Prof. Mehta, or mentioning the wrong university, will end your chances with that professor immediately.

8. Subject lines that get opened

Professors scan their inbox by subject line. Yours should say exactly what the email is, in a few words, and include your area and dates.

If the professor's page asks for a specific tag such as [Internship] or "Prospective intern", put it at the start of the subject exactly as written.

9. Full example emails

These examples show the structure in different fields. The names, papers and projects are made up. Do not copy them word for word: adapt the structure and fill it with your own real details.

Example 1: Computer science / machine learning

Why it works: the subject says what, when and the topic. The second paragraph proves he read a specific paper. The third shows a real, measured result with a link. The ask has exact dates. It is under 200 words.

Example 2: Mechanical engineering

Example 3: Biotechnology / life sciences

Example 4: When you have no project yet

If you are in your second year and have no project, be honest and show effort in another way: a relevant course, a paper you reproduced, a skill you are learning seriously.

10. A bad email, taken apart

This is the kind of email professors receive dozens of times a week. Almost all of them go unanswered.

What is wrong:

• Sent to many professors at once in BCC. Professors can tell, and many filter such emails out.
• Subject "Internship" says nothing about the area or dates.
• "Respected Sir/Madam": the student does not even know who they are writing to.
• Six unrelated fields of interest show no real interest in anything.
• "Your esteemed profile": generic praise with no specific detail proves nothing was read.
• No project, no skill, no result: nothing tells the professor what this student can actually do.
• "Any project, any work" sounds desperate and gives the professor no reason to choose them.
• No dates, no college, no full name, no contact details.
• Five attachments in mixed formats, including a Word file and photos of marksheets.

11. Attachments: what to send

Less is more. In the first email, attach only your CV, as a single PDF. Everything else can be sent if the professor asks.

• Always use PDF. Word files look different on different computers, and some institute mail systems block them.
• Check the PDF opens and looks right on a phone before sending: many professors read email on their phones.
• Mention the attachment in the email ("I have attached my CV"), so it is not mistaken for spam.
• If you share a Google Drive link, set it to "Anyone with the link can view". A link that asks the professor to request access is a dead end.

12. The research CV

A research CV is not a job resume. It should make it easy to see, in 20 seconds, what you know, what you have built and how well you have done. For an undergraduate, one page is ideal.

What to include, in this order

1. Name and contact: email, phone, GitHub or website, LinkedIn (optional). No photo, date of birth, father's name, religion or address are needed.
2. Education: degree, branch, college, years, CGPA. Class 12 and 10 marks in one line each (optional for master's students).
3. Research interests: one line, two or three specific topics.
4. Research experience / projects: the most important section. For each: title, supervisor (if any), dates, and 2–3 bullet points with what you did and the result.
5. Publications / posters / talks: only if you have any. Never list "under preparation" papers that do not exist.
6. Skills: grouped (programming, tools, lab techniques). List only what you can actually use in an interview.
7. Relevant coursework: four to six courses connected to the area.
8. Achievements: ranks, scholarships, competition results. Skip school-level awards unless exceptional.

A sample one-page CV layout

CV mistakes to avoid

• Two or three pages of filler: hobbies, "strengths: hardworking, team player", a career objective paragraph.
• Listing 20 skills, including ones you used once. If it is on your CV, you can be asked about it.
• Project bullets that say what the project was, not what you did and achieved.
• Inconsistent formatting, spelling mistakes, and a file called resume_final_new(2).pdf.

Many students make their CV in LaTeX (Overleaf has free templates) for a clean, academic look, but a neat Word or Google Docs layout exported to PDF is perfectly fine.

13. Letters of recommendation (LoR)

For a direct-email internship, most professors will not ask for a letter in the first email. But formal programmes often do, and some professors will ask for a referee before confirming. Arrange this early.

Who to ask

• A faculty member who supervised a project of yours is the best choice.
• Next best: a professor whose course you did very well in and who knows you by name.
• A letter from a famous person who barely knows you is worth less than a detailed letter from someone who knows your work.

How to ask

Ask in person first if possible, then follow up by email with everything they need. Give them at least two to three weeks.

• Never write the letter yourself and ask the professor to sign it, even if they suggest it informally. It is unethical and often easy to spot.
• Thank your recommender afterwards, and tell them where you got in. They want to know.

14. Sending: timing, account and pace

Send each email individually

One professor per email, addressed by name, with their name in the "To" field. Never put several professors in CC or BCC. If you use a mail-merge tool to save time, check every single email before it goes out: a merge mistake ("Dear {Name}") is very visible.

Use one consistent email account

Send from your college email or a professional personal address, and use the same one throughout so replies and follow-ups stay in one thread. Check your spam folder regularly, since replies sometimes land there.

When to send

• Weekday mornings (roughly 9 to 11 am, Monday to Thursday) are good: your email is near the top when the professor opens their inbox.
• Avoid late nights, weekends, exam weeks, major festivals and the week before a conference deadline in their field, when they are busiest.
• For professors abroad, send in the morning of their time zone.

Pace yourself

Sending a large number of emails in a short time from one account can make email providers treat your messages as spam, so they land in the professor's junk folder. Spread them out: a few each day, with some minutes between them, in weekly batches. It also forces you to write each one properly.

Proofread every email

• Professor's name, title and spelling.
• The paper or project you mention really belongs to this professor.
• The correct institute name (do not write "IIT Bombay" to a professor at IIT Delhi).
• The attachment is actually attached, and it is the right file.
• Your dates and phone number are correct.

15. Following up

Professors miss emails all the time. A polite follow-up is normal and often gets the reply. The rules:

• Wait 7 to 10 days (not counting weekends) after your first email.
• Reply in the same email thread, so your original email is right below.
• Keep it to two or three sentences. Add one new thing if you can (a new result, a link).
• Follow up only once. If there is still no reply after that, move on and do not take it personally.

16. Handling replies and interviews

Reply within 24 hours

When a professor replies, respond quickly, ideally the same day. Thank them, answer every question they asked, and confirm any dates or next steps clearly.

The common kinds of replies

How to prepare for a call or interview

• Re-read the professor's two or three recent papers, and be ready to explain one of them in simple words.
• Be able to explain every project on your CV in detail: what problem, what you did, what result, what you would do next.
• Revise the basics of the area (for ML: linear algebra, probability, how a neural network is trained; for mechanical: fluid mechanics and heat transfer fundamentals; and so on).
• Prepare two or three questions of your own: "What would a summer intern typically work on?" or "Which skills should I strengthen before joining?"
• Join on time, from a quiet place, with a working camera and microphone. Dress neatly.
• If you do not know something, say so honestly and explain how you would find out. Guessing confidently and being wrong is much worse.

A polite way to decline or say no

If you accept another offer, write to everyone else who was considering you. It is a small effort that keeps your reputation good, and professors talk to each other.

17. After you get an offer

Get it in writing

Ask for an email or an official offer letter confirming your dates, the supervisor and, if applicable, the stipend and accommodation. Your college will usually need this.

No Objection Certificate (NOC)

Many institutes require an NOC or a letter from your college (often signed by the Head of Department or Principal) stating that you are a student and are permitted to do the internship. Ask your department early: some colleges take one or two weeks to issue it.

Stipend

Some internships come with a stipend (especially formal programmes and funded projects), but many direct-email internships, particularly for undergraduates from other colleges, are unpaid. Do not ask about money in your first email. Once a professor is interested, it is perfectly acceptable to ask politely: "Could you let me know whether a stipend or hostel accommodation would be available?"

Accommodation

• Ask whether the institute provides hostel accommodation for summer interns and what it costs. Many do, subject to availability, and usually require a request through the professor or the department.
• If not, ask the PhD students in the lab about PGs or rooms nearby. They usually know the best options.

Prepare before day one

Ask the professor (or the PhD student you will work with) what you should read or learn beforehand. Two or three weeks of preparation means you can start contributing in your first week, which makes a big difference to what you achieve in a short internship.

18. During the internship: making it count

• Agree on a clear goal in the first week: what problem you are working on and what "done" looks like by the end.
• Keep a daily log of what you tried, what worked and what did not. It makes your weekly updates and final report much easier.
• Send a short weekly update to your supervisor (three to five bullet points: done, results, problems, next steps), even if they do not ask.
• Ask questions, but try first. Spend some time on a problem yourself, then ask with specifics: "I tried A and B, and got this error; could C be the reason?"
• Learn from the PhD students. They are your daily guides. Be helpful and respectful of their time.
• Finish with something concrete: a report, a presentation to the group, clean documented code or data. Leave things in a state someone else can continue.
• Ask for a letter at the end, while your work is fresh: "Would you be comfortable writing a recommendation letter for my MS/PhD applications later?" Then stay in touch with an occasional update.

19. Common mistakes that cost students internships

1. Starting too late. Emailing in April for a May internship.
2. Mass mailing. One generic email to hundreds of professors, often in BCC.
3. No research on the professor. Mentioning their "esteemed work" without a single specific detail.
4. Wrong names or institutes, usually from copy-pasting.
5. Ignoring instructions on the professor's page (subject tags, application forms, "no interns").
6. Long emails. Five paragraphs about your life story and passion.
7. Too many attachments, or a Word file, or photos of documents.
8. Interests in ten unrelated fields.
9. Following up too often or rudely ("Sir, why have you not replied?").
10. Exaggerating your CV, then failing basic questions about it in the interview.
11. Accepting an offer and then disappearing, or not telling other professors you have accepted elsewhere.
12. Giving up after 15 emails. Silence is normal. Persistence with quality is what works.

20. Frequently asked questions

21. The complete checklist

Before emailing

• Chosen one main research area (and at most one related area).
• At least one real project or reproduction, with results, ideally on GitHub or in a report.
• One-page research CV as a PDF, named Firstname_Lastname_CV.pdf.
• A professional email address, with a simple signature (name, degree, college, phone).
• Transcript ready as a single PDF.
• A faculty member at your college willing to recommend you.
• A spreadsheet to track professors.

For every professor

• Read their lab page, including any instructions for prospective interns.
• Read the abstract and introduction of at least one recent paper.
• Wrote a specific "why you" sentence based on that.
• Subject line with area and dates (and any tag they ask for).
• Correct name, title and institute; correct email address from the official page.
• 150–250 words, CV attached as a PDF, attachment mentioned in the email.
• Sent individually, on a weekday morning, and logged in the spreadsheet.

After sending

• One polite follow-up after 7–10 working days, in the same thread.
• Replies answered within 24 hours.
• Prepared for calls: their papers, your projects, the basics of the area.
• Offer confirmed in writing; NOC, travel and accommodation arranged.
• Other professors and programmes informed once you accept an offer.

Getting a research internship from outside these institutes is mostly a matter of preparation, precision and persistence. Pick your area, build one real piece of work, find professors whose work truly matches yours, and write each of them a short, specific, honest email. Do that consistently from December to February, follow up once, and you give yourself a real chance at an experience that can shape your whole career.

Programme names, dates and rules change from year to year. Always check the official institute or programme website before applying. Names, papers and projects in the examples are illustrative.