
How to Prepare Chemistry for GATE Life Sciences (XL) 2027
Studying biology and unsure where to begin with chemistry? Find the syllabus boundary, the depth to prepare and a clear starting point.
CSIR NET Dec 2026 applications are open till 5 November. Dates, fees, eligibility, and what the new Life Sciences and Bio-Technology paper means.
Written by PsiGenei Editorial · Reviewed by Shabab Anwar · Published 9 Oct 2026 · Updated 26 Oct 2026 · 5 min read

NTA has opened applications for the Joint CSIR-UGC NET December 2026. You can apply on csirnet.nta.nic.in from 7 October to 5 November 2026 (11:50 PM). The exam will be held on 19, 22, and 27 December 2026.
The biggest change for life science students: the subject is now called Life Sciences and Bio-Technology (LS-BT), subject code 703. CSIR and DBT will award fellowships in LS-BT through this exam, and the syllabus now has 14 units, including three biotechnology units.
| Event | Date |
|---|---|
| Online application | 7 October to 5 November 2026 (up to 11:50 PM) |
| Last date to pay the fee | 5 November 2026 (up to 11:50 PM) |
| Late application with ₹500 late fee | 6 to 9 November 2026 |
| Correction window | 10 to 12 November 2026 (up to 11:50 PM) |
| Exam city slip and admit card | To be announced |
| Exam dates | 19, 22 and 27 December 2026 |
| Exam timings | Shift 1: 9:00 AM to 12:00 noon · Shift 2: 3:00 PM to 6:00 PM |
NTA calls these dates tentative. Your exact date and shift will be on your admit card, because NTA has not yet said which subject is on which day.
Apply before 5 November. The late window costs ₹500 more, and leaving it to the last few days risks a slow website or a failed payment.
From this cycle, the Life Sciences paper is Life Sciences and Bio-Technology (LS-BT). Here is what the official documents say:
In the past 19 CSIR NET papers, the topics now in Units 11, 12 and 13 gave less than 5% of Part C. The first LS-BT paper may ask more from them. We don't know yet how much. If you come from a life science background, keep a small, separate plan for these units. If you come from biotechnology, they may become your strength. Our unit-wise weightage analysis shows how the other units compare.
| Part | Questions | You answer | Correct | Wrong | Maximum marks |
|---|---|---|---|---|---|
| Part A (general aptitude) | 20 | 15 | +2 | -0.5 | 30 |
| Part B (subject) | 50 | 35 | +2 | -0.5 | 70 |
| Part C (higher-level questions) | 75 | 25 | +4 | -1 | 100 |
| Total | 145 | 75 | - | - | 200 |
The exam is a 3-hour computer-based test, in Hindi and English. If you answer more questions than allowed in a part, only your first 15, 35 or 25 answers are counted.
| Qualifying for | Age limit |
|---|---|
| JRF | Not more than 30 years as on 1 December 2026 |
| Assistant Professor | No upper age limit |
| PhD admission | No upper age limit |
The JRF age limit is relaxed by up to 5 years for OBC-NCL, SC, ST, PwD/PwBD, Third gender and women candidates. The total relaxation cannot be more than 5 years.
| Category | Fee |
|---|---|
| General | ₹1,150 |
| General-EWS / OBC-NCL | ₹600 |
| SC / ST / PwD / PwBD / Third gender | ₹325 |
| Late fee (6–9 November) | ₹500 extra |
Bank charges are extra. The fee is not refunded if you don't take the exam.
Your result places you in one of three categories:
The JRF fellowship is ₹37,000 a month for the first two years, plus ₹20,000 a year for research costs. After two years, it can be upgraded to SRF at ₹42,000 a month, after an assessment.
The exam is scheduled to start on 19 December 2026. The new syllabus groups everything into 14 units, so start by seeing which units give the most questions.
All dates, fees, and rules are from the NTA information bulletin and notice for Joint CSIR-UGC NET December 2026, checked on 8 October 2026. NTA can change them, so check csirnet.nta.nic.in before you apply.
Read the full guide
CSIR NET Life Sciences
The exam for JRF, Assistant Professor eligibility and PhD admission. December 2026 cycle, revised 14-unit syllabus.
Test Manthan
Practice CSIR NET Life Sciences questions
Make a free topic test from real exam-style questions.

Written by
Editorial Team
Educators, mentors and researchers from IIT Bombay, IISc, and AIIMS committed to making higher education and career guidance in the Life Sciences clearer, more practical, and more accessible.
Reviewed by Shabab Anwar
More from PsiGenei Editorial →
Studying biology and unsure where to begin with chemistry? Find the syllabus boundary, the depth to prepare and a clear starting point.

We sorted 2,593 past questions into the 14 units of the new syllabus. Here is how many questions each unit gave in Part B and Part C.

DigiLocker is now mandatory for Indian applicants. Here is what GOAPS will fetch, what you still need to upload, and what to check before registration opens.

The 2026 Nobel Prize in Medicine honours optogenetics. Meet the scientists who turned a single-celled alga's light sensor into a switch for the brain.

Exam strategies, career paths, and opportunities - delivered straight to your inbox.