PhD in Mathematics in India: Which Exam Opens Which Door

You need the exam your target institute accepts, and the five institutes below accept different ones. Choose two or three institutes, find the exam each lists, and prepare for the one that appears most often among them.

Three terms recur in the table. JRF is the Junior Research Fellowship that a high CSIR-NET score can earn. JAM is the Joint Admission Test for MSc. IISER stands for Indian Institute of Science Education and Research.

Rules above are from each institute's 2026 or 2026-27 documents, as of October 2026.

We counted the table's rows. CSIR-NET (or a CSIR-NET JRF) is accepted at IMSc and IISc, and IIT Bombay accepts national fellowships. The NBHM test is accepted at IMSc and IISER Pune. GATE is accepted at IISc and IIT Bombay. An institute's own test is the route at TIFR and IISER Pune. No exam appears in all five.

The NBHM test is the most widely shared single exam outside this table: its scores are used to screen applicants at ten institutions. They are the Harish-Chandra Research Institute, five IISERs (Berhampur, Bhopal, Mohali, Pune and Thiruvananthapuram), the Kerala School of Mathematics, Krea University, the National Institute of Science Education and Research (NISER) and IMSc. Our NBHM scholarship page covers its pay and past papers.

If your targets are IIT departments, our page on GATE Mathematics vs CSIR-NET for an IIT PhD compares the two exams department by department.

No. A JRF qualification makes you eligible to be screened and interviewed, and it brings a fellowship with it. The institute still selects you through its own stages.

At IMSc, applicants are shortlisted on NBHM or CSIR-NET performance, interviewed in March, and selected on test, interview and academic record together. At IISc, screening on exam scores is followed by an interview that determines final selection. IISER Pune runs a test and then interviews.

The Lectureship-only result needs a separate check. CSIR-NET can qualify you for a JRF, or only for Lectureship, which means eligibility for Assistant Professor posts. IISc states that candidates qualified only for Lectureship are not eligible for its research programmes. If research admission is your goal, a Lectureship-only result is a weaker outcome than it sounds.

Our inference, not an institute rule: interviews at this level are likely to test whether you can explain proofs aloud, so practise that. Our page on GATE Mathematics vs IIT PhD interview preparation covers that gap.

A funded mathematics PhD pays ₹37,000 a month for the first two years and ₹42,000 after that, at most of the funding routes compared here. IIT Bombay research assistantships pay ₹42,000, then ₹47,000. Rates from the 2026 documents:

Extras differ. NBHM adds a ₹40,000 yearly contingency grant and house rent allowance (HRA) at Government of India norms. UGC's contingency for science scholars is ₹12,000 a year for a JRF and ₹25,000 for an SRF. TIFR provides hostel accommodation or HRA. IIT Bombay's teaching assistantship requires 8 hours a week of teaching duty.

Our model for the five-year total uses IIT Bombay's teaching assistantship terms, which run up to five years or until thesis submission. 24 months at ₹37,000 is ₹8,88,000, and 36 months at ₹42,000 is ₹15,12,000. The total is ₹24,00,000, or ₹24 lakh. This is stipend only and assumes both rates continue for the full period. On the research assistantship rates the same arithmetic gives ₹10,08,000 plus ₹16,92,000, or ₹27,00,000.

Provisionally admitted students at TIFR receive no fellowship until they submit proof of passing their qualifying examination, which is a reason to hold the exam result before you join.

As of October 2026, the NBHM portal for the 2027 cycle is expected to open in the first week of December, following the 2025 pattern, with the written test in January. The exam you need is usually sat months before the application, and dates shift, so confirm them on each institute's notice.

One IMSc rule decides which CSIR-NET sitting counts. IMSc considers only results published before 1 March of the admission year: for 2026 admissions it accepted the December 2024, July 2025 and December 2025 sittings, with the top 30 ranks in Mathematics eligible to apply (IMSc). CSIR-NET is held twice a year, and our CSIR-NET exam date page tracks the next sitting.

Last cycle (admissions for 2026):

• NBHM: applications ran from 3 to 21 December 2025, the written test was on 24 January 2026, interview shortlists came on 27 February, interviews in March, and final results on 30 April 2026 (NBHM).
• IISc: the 2026-27 notice was dated 4 February 2026 and applications ran from 11 February to 23 March 2026. Exam scores had to be valid on 1 August 2026 (IISc).
• IISER Pune: applications ran from 2 to 22 March, the written test was on 4 April and interviews were on 15 and 16 May 2026 (IISER Pune).
• IIT Bombay: it admits in both autumn and spring semesters (brochure).

Our inference from this pattern: a student in the final year of an MSc should settle the exam by the start of that year. The December and January exams decide entry for the following August, and there is little slack once the interview season starts.

There is no single national syllabus. Coursework is set by each institute (Delhi University: six months and 16 credits; IISc: at least 12 credits), the NBHM entrance test has no prescribed syllabus, and UGC rules allow three to six years for full-time scholars.

The UGC regulations set a minimum of three years from registration of the research topic and a maximum of six (UGC regulations). Delhi University's department describes six months of coursework and 16 credits, including two mandatory courses (Research Methodology, and Research and Publication Ethics) and three electives from nine, with a programme length of about three to five years. IISc requires at least 12 credits, at three credits a course.

Topics depend on the department. IIT Bombay's mathematics department lists research areas such as Algebra and Number Theory, Analysis, and Combinatorics and Theoretical Computer Science (brochure).

For the NBHM test, question papers with keys from 2005 onward are available on its website. Our recommendation is to treat those past papers as your syllabus and to time yourself on them.

Run these five checks in order, and stop when one fails. Each has a clear pass or fail.

We prepare students for CSIR-NET and GATE Mathematics, two of the exams in the table above, with live online classes and recorded courses.

Our CSIR-NET and GATE Mathematics 2027 course includes PDF notes, assignments, previous-year-question discussion, mock tests and analytics of your progress. As of October 2026 it costs ₹15,999 as a one-time payment, or four instalments of ₹3,999.75 totalling ₹15,999, with access through 30 June 2027. A ₹999 demo plan is also available. The CSIR-NET December 2026 Live Batch costs ₹11,999 one-time, or three instalments of ₹3,999.67.

SB Sir teaches Pure Mathematics, Eshita Mam teaches Applied Mathematics, and Vivek Sir teaches Abstract Algebra and Real Analysis. SB Sir designs all our test series and conceptual tests, including the Core Concept Diagnostic test series. Our free content is a way in before you pay: it includes TJK 9.0, demo classes and our PDF Drive.

If you are unsure whether CSIR-NET or GATE suits your target institutes, contact us and tell us your shortlist.