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If you want to study basic science in a research setting straight after Class 12, NEST is worth knowing. It is the entrance test for the five-year Integrated MSc at two institutes set up by the Department of Atomic Energy. Its scoring rules are unusual, and many students lose ranks because they misread them. This post goes through the official 2026 rules, works a full scoring example, and ends with a preparation routine.
All details are from the NEST 2026 information brochure and the official NEST website. The 2027 brochure may change things, so check it when it appears. In the 2026 cycle, applications opened on 5 January.
Which institutes admit through NEST?
NISER Bhubaneswar, an off-campus centre of the Homi Bhabha National Institute. The NEST site listed 200 seats in 2026.
UM-DAE CEBS Mumbai, on the University of Mumbai's Vidyanagari campus. The site listed about 57 seats in 2026.
Both offer an Integrated MSc in biological, chemical, mathematical and physical sciences. The NEST site says admitted students are eligible for a DISHA scholarship from DAE of ₹60,000 a year, plus ₹20,000 a year for summer internships.
Who can take NEST?
The 2026 brochure set four conditions:
At least three of biology, chemistry, mathematics and physics in Classes 11 and 12.
Class 12 passed in 2024 or 2025, or being taken in 2026.
At least 60% aggregate in Class 12 (55% for SC, ST and Divyangjan candidates).
A rank in the NEST merit list.
There was no upper age limit.
What does the NEST paper look like?
The 2026 test was a three-hour computer-based test in English and Hindi. It had four sections, one per subject, each with 20 multiple-choice questions of four options. A correct answer earned 3 marks, a wrong answer cost 1 mark, and a skipped question scored 0. Each section was worth 60 marks, so the paper totalled 240.
The syllabus "primarily follows the CBSE curriculum (2025-26) and NCERT books of classes XI-XII", according to the NEST site, with some Class 10 science also needed. The topic-by-topic list is in the NEST 2026 syllabus. Calculators and log tables were not allowed.
How is a NEST score turned into a rank?
This is the part to read slowly. The brochure defines three steps:
Section cut-off (SMAS). For each section, the cut-off for unreserved candidates is 20% of the average of the top 100 scores in that section. It is 90% of that for OBC, 50% for SC and ST, with a further relaxation for Divyangjan candidates.
Total score. You must clear the cut-off in at least three sections. Your total is the sum of your three highest qualifying section scores, so the maximum is 180.
Percentile and rank. Totals become percentiles, and you need at least the Minimum Admissible Percentile (MAP) to get a rank.
For 2026, the NEST site published these unreserved cut-offs: biology 8.83, chemistry 11.26, mathematics 9.63 and physics 9.44. The unreserved MAP was the 80th percentile.
Worked example: scoring one candidate
Suppose an unreserved candidate in 2026 answers like this:
Biology: 12 right, 4 wrong. Score = 12 × 3 − 4 = 32.
Chemistry: 8 right, 6 wrong. Score = 24 − 6 = 18.
Mathematics: 3 right, 5 wrong. Score = 9 − 5 = 4.
Physics: 10 right, 2 wrong. Score = 30 − 2 = 28.
Now compare each with the 2026 cut-offs. Biology 32 ≥ 8.83, chemistry 18 ≥ 11.26 and physics 28 ≥ 9.44 all clear. Mathematics 4 < 9.63 does not. Three sections qualify, so the total is 32 + 18 + 28 = 78 out of 180. The candidate gets a rank only if 78 puts them at or above the 80th percentile.
Notice what the five wrong answers in mathematics did: they pushed that section from 9 to 4. Here it did not matter, because mathematics was dropped. If chemistry had been weaker, it would have.
Common mistakes
Spreading effort evenly over four subjects. Since only three count, pick your three strongest early and build them.
Guessing heavily in a weak section. Wrong answers can drag a section below the cut-off.
Ignoring Class 10 science. The syllabus note says it may be needed.
Assuming NEST is JEE-lite. NEST is its own test. Our guide to the IISER Aptitude Test covers a similar research-oriented route, and CUET for science students covers another.
A preparation routine
Now to December: finish NCERT Class 11 and 12 in your three main subjects, with end-of-chapter questions.
January to March: one past NEST section a week from the question archive, scored with +3/−1.
April to the exam: full three-hour papers. After each, check every section against the previous year's cut-off.
When a topic will not stick, the Fermi Concept Library has a lesson for each concept in physics, chemistry, biology and mathematics, which helps before you return to past papers.
This week, take one past NEST paper, score each section, and decide which three subjects you will build.
