As you want to know about of Inter-University Centre for Astronomy and Astrophysics (IUCAA) INAT exam here I will get details for you.

Syllabus
Part 1 consists of questions from
Basic Mathematics
Physics and
Electronics

Part 2 consists of questions from:
Advanced Physics
Mathematics and
Electronics/Engineering

Eligibility
Aspiring candidates who are expecting to complete their M.Sc or B.E./B.Tech/M.E./M.Tech degrees by August 2016 with more than 55% marks are eligible to apply.

Besides talented final-year B.Sc., 1st year M.Sc and 2nd/3rd year B.E./B.Tech students may also apply to be PRE-SELECTED for a research scholarship towards a Ph.D at IUCAA for Physics or Astronomy and Astrophysics or at NCRA-TIFR for Astronomy and Astrophysics.

Students in any branch of the B.E., B.Tech., M.E. or M.Tech degrees, or in the Physics, Electronics, Astronomy or Applied Mathematics branches of the B.Sc or M.Sc degrees, are eligible to apply for INAT.

Students who have already completed any of the above degrees are also eligible.

Exam pattern
The test will be of 2 hours duration. The question paper will have two parts, A and B

Part A will contain twenty objective-type questions on basic Mathematics, Physics and Electronics

Part B will contain another twenty objective-type questions from advanced Physics, Mathematics and Electronics/Engineering.

For each question, candidates will have to identify and mark the correct answer from the given four answers

For a correct answer, there will be +3 (plus three) marks, and for a wrong answer, there will be -1 (minus one) mark.

Based on their performance in the written test, a limited number of candidates will be invited for 2 interviews