Research institutes in Thiruvananthapuram for a PhD

Which Thiruvananthapuram institutes take PhD scholars, and whose degree will you get?

The first five institutes in this list do their own selection and publish calls. For the last three there is no such call from the institute side. There you join through a scientist who is already a recognised guide under some university.

Cite this data: PhD Desk, “Research institutes in Thiruvananthapuram for a PhD”, last reviewed 1 November 2026, https://phddesk.in/guides/research-institutes-in-thiruvananthapuram-for-phd

Please see the campus column before deciding. IISER is at Vithura and IIST is at Valiamala, both well outside city. JNTBGRI at Palode is also far. If you are planning to stay at home during the PhD, this travel becomes a real problem.

The 2026–27 calendar, as checked in late September 2026

• 1 to 30 September 2026: SCTIMST’s online applications open for the January 2027 PhD session.
• 5 October 2026: last date for the School of Biology call at IISER Thiruvananthapuram. The online interview was planned for 9 October.
• 31 October 2026: closing date in AcSIR’s admission notice for January 2027. CSIR-NIIST comes under this same notice.
• 13 and 16 November 2026: PhD written test and then PhD interview at SCTIMST for the January 2027 session, as per the dates in its prospectus.
• January 2027: new scholars of SCTIMST and AcSIR join. IIST also takes scholars in January, but when we checked there was no January call yet.

What did IISER Thiruvananthapuram’s two 2026 PhD calls ask for?

IISER Thiruvananthapuram calls its August semester “Varsha”. In 2026 it put out two separate calls for this semester.

The main Varsha 2026 advertisement stayed open from 20 March to 20 April 2026. Schools covered were Biology, Chemistry, Mathematics, Physics, Data Sciences and Earth, Environmental and Sustainability Sciences, and two research centres also. In the master’s you needed a 6.5 CGPA or first class (50% for SC, ST and PwD candidates). Along with that you needed CSIR-JRF, UGC-JRF in Category I, II or III, GATE or one of the other listed tests. Graduates of IISER, IIT and IISc with a CGPA of 8 were exempted from the test. On top of this, each school had its own conditions. For example, GATE in Ecology and Evolution was counted for ecology and behaviour only. Most of the interviews happened in May. Biology was different. It had an online round in June and an in-person round in July.

The second call is much narrower. It was released on 25 September 2026 for a session starting in October. Only the School of Biology is in it, and only CSIR or UGC JRF holders in Category I can apply. DBT-JRF Category I and ICMR-JRF are also accepted, if they are tenable at IISER. So a NET result in Category II or III, which was enough in March, will not work for this call.

This window was open for ten days only, from 25 September to 5 October 2026. These short extra calls are easy to miss. If you are a JRF holder in life sciences, open its admission portal every week and check.

Can you get into an IIST PhD without a JRF?

Yes, you can, and this is where IIST is different from the others. As per its July 2026 notification, a valid CSIR or UGC-NET, NBHM, JEST or GATE result took you directly to interview. No fellowship was needed. What about candidates without a score? ME and MTech holders with no such score could write a one-hour objective screening test in its place, held at Valiamala on 29 June 2026. This route was also open to BTech graduates of IIT or IIST having a CGPA of 7.5. The cut-off for the screening test was fixed by each department. For the interview it was 60% (55% for reserved categories). For master’s holders in science and humanities, a national test was still needed.

• Seven departments: Aerospace Engineering, Avionics, Chemistry, Earth and Space Sciences, Humanities and Social Sciences, Mathematics and Physics. One applicant can choose four research areas at the most.
• Money: scholars funded by IIST got ₹37,000 a month, going up to ₹42,000 after a review at two years. If your fellowship is from CSIR, UGC, NBHM or a state science scheme, you draw that one only. And if that agency stops paying, IIST will not cover the gap.
• Fees: the first semester was ₹24,200, which includes hostel, admission fee and caution deposit. From the next semester it is ₹17,700 each time. SC, ST and PwD scholars pay no tuition.
• Conditions: your age must be below 35 on 25 May 2026. You also have to handle up to six hours a week of tutorials or lab work. Government and PSU employees need a no-objection certificate.

Seats at IIST are fixed again every session, even though it admits in January as well as July. So keep checking its admission portal. Don’t take it for granted that a January 2027 call will come. Engineers who are comparing IIST with KTU can read our engineering PhD in Thiruvananthapuram page.

How do RGCB and SCTIMST choose biomedical PhD scholars?

RGCB, Poojappura

On RGCB’s website the affiliations still show the University of Kerala, Manipal, MG University and the Kerala University of Health Sciences. Earlier batches registered there. The August 2026 call says something else. As per this call, new scholars are registered at RCB. Applicants needed a postgraduate degree with 60% and a national JRF that is valid for five years. Age had to be below 28. There was five years of relaxation for SC, ST, PwD and women applicants, and three years for OBC.

Selection went in three levels. All were at the main campus. Research aptitude was checked first and subject knowledge next. Last came a laboratory rotation, and outstation candidates got hostel rooms free for it. Only once the rotation got over did a scholar give the name of the lab he or she wanted. Ten projects were there in that call and each project had one seat only. Keep an eye on the fees because the total becomes big. RGCB takes ₹5,000 per semester for the first ten semesters and ₹10,000 after that. Over and above this, RCB collects ₹5,000 a semester till the open defence.

SCTIMST

SCTIMST gives its own PhD in the physical, chemical, biological and biomedical sciences. Bioengineering, biomaterials, health sciences and medical sciences are also covered. The rules below come from its January 2027 prospectus.

• Two selections a year, one in June for the July session and one in November for January. Only fellowship holders and SCTIMST’s own MPhil graduates can come for the July round.
• A written test for most. Holders of UGC, CSIR, ICMR and DBT JRF are called directly for interview. KSCSTE JRF and INSPIRE holders have to write the test, and SRF holders from any source also write it.
• A proposal with the application: it should be around 1,000 words. Along with it you give a statement of purpose of 300 to 500 words.
• Six institute fellowships a year are given at DST rates. There is a bond attached to these seats. If you leave after the first month, you must pay back not less than six months of the fellowship.
• Selection is not registration. After selection you still have to convince a recognised guide. The guide will look at slots, grants and how you are funded before saying yes.

Part-time registration is there only in health sciences, at the Achutha Menon Centre. We have written about it in our social-science PhD in Thiruvananthapuram page.

Which routes into CSIR-NIIST does AcSIR allow?

According to NIIST’s AcSIR page, admission happens for the January and August sessions. The eligibility sheet gives three routes for getting into science PhD there. One is a national fellowship like CSIR, UGC, DBT, INSPIRE, RGNF and similar ones. Another is a temporary project post in the institute itself. The third is sponsorship by your employer, with a no-objection certificate. For the engineering PhD there is a fourth way, which is self-sponsored. That means an MTech graduate without fellowship can get in here, just like at IIST.

A project assistant needs one year of work on a sanctioned project. The application goes with permission from the project leader and the Director. If there is no national test result, a filed patent or a paper in an SCI journal is required. NET Category 2 or 3, GATE, BET or JEST can take the place of that.

The first-semester fee was ₹14,000, and ₹28,000 for sponsored candidates. If you want NIIST and you have no JRF, the eligibility sheet shows one path. Work for a year as a project associate on a sanctioned project. A paper or a filed patent from that work will help your case.

How do you join NCESS, JNTBGRI or the Space Physics Laboratory, which have no admission test?

None of these three has a PhD programme of its own. You come with funding, find a scientist there who is a recognised guide, and register with that guide’s university. For most scholars this is the University of Kerala. Its July 2026 registration notification allows scientists in central or state laboratories within its jurisdiction to be supervisors. Grades C and D are treated as Assistant Professor, with four scholars each. Grade E is treated as Associate Professor (six scholars), and grades F and G as Professor (eight). Quite a lot of candidates are exempted from its entrance test. That includes holders of UGC-NET, CSIR or DBT JRF, INSPIRE, SLET, GATE and VSSC-JRF. Registration opens two times a year, in January and July. For the thesis you follow our University of Kerala thesis format guide.

• NCESS, Akkulam. As per its FAQ, postgraduates with NET join recognised guides there. The stipend comes from CSIR, a university or the institute’s own projects. You have to write to an NCESS supervisor yourself, that is what the FAQ says. In its list of research staff you can see MoES, INSPIRE, CSIR, UGC and KSCSTE fellows.
• JNTBGRI, Palode. Holders of CSIR-JRF, INSPIRE and KSCSTE fellowships write to the Director to find a guide. The scientists here are guides at universities in Kerala and Tamil Nadu. Research students pay no bench fee at JNTBGRI. ICAR-CTCRI at Sreekariyam works differently. It charges its PhD students ₹15,000 plus GST per semester, and half of that for EWS, SC, ST, OBC and women students.
• Space Physics Laboratory, VSSC. Advertisement 339, from April 2026, had eight JRF positions. These were for physics and atmospheric science postgraduates who had CSIR-UGC NET (lectureship also counted), GATE or JEST. Pay was ₹37,000 a month. It was renewed every year, up to five years in total. As SRF after two years, it became ₹42,000. The age limit was 28. No degree-awarding university is named in the advertisement, so ask about it at the interview.

So remember the order here. Fellowship first, guide next, and registration last, in the next January or July window. With a KSCSTE fellowship, for example, you can fix your JNTBGRI guide first and do the registration afterwards.