Astronomer / Astrophysicist

Studying stars, planets, galaxies, black holes and the early universe. Most of the work is analysing telescope data, writing code, doing physics calculations, writing research papers and teaching. Some astronomers also help build telescope instruments.

A day in the work
You reach the institute and check the overnight data or simulation you started the day before. Then you write or fix code to clean the data and plot results. In the afternoon you meet your supervisor or group to argue over what the numbers mean. Some days are for reading papers, teaching a class or writing up results. Observing runs on a telescope happen only a few times a year, often remotely.

1. Step 1 · Class 11–12Take Physics, Chemistry and Maths (PCM). Maths and Physics matter most. Start sky-watching and reading, and build a habit of solving physics problems.
2. Step 2 · Class 12 → 3–4 yearsB.Sc in Physics (Maths as a subsidiary is a big help), or an integrated M.Sc / BS-MS programme, or B.Tech. Entry depends on the university or institute, so check each admission notice. Keep your marks steady. PhD institutes ask for 55–60% or more in your degrees. (reported — check with the official body)
3. Step 3 · 2 yearsM.Sc in Physics (or Astronomy, Applied Physics, Electronics, Applied Maths). One route is the SPPU-IUCAA Joint M.Sc (Physics with Astrophysics) in Pune. Entry to it is based only on the INAT written test score.
4. Step 4 · During or after M.ScClear a national test: JEST (Physics), GATE (Physics), CSIR-UGC NET with JRF, or the TIFR Graduate School test. IIA's 2026 PhD call asked for 95 percentile or above in JEST or GATE Physics, or a JRF, plus 60% aggregate marks and age up to 28 as of 31 May 2026.
5. Step 5 · InterviewsApply to institutes such as IIA (Bengaluru), IUCAA (Pune), NCRA-TIFR and TIFR (Mumbai). IIA selects by in-person interview. IUCAA holds two rounds of interviews in Pune. Many students apply to several institutes.
6. Step 6 · About 5 yearsPhD under a supervisor, on a fellowship. You do research, use or analyse telescope data, and publish papers.
7. Step 7 · After PhDPostdoctoral research posts (often in India and abroad), then scientist or faculty posts at research institutes, observatories and universities. These are advertised by each institute when posts are open, so there is no single national exam. Posts are few and competition is high. (reported — check with the official body)

• B.Sc Physics → M.Sc → PhDThe most common path. Needs about 10 years after Class 12 (3 + 2 + about 5).
• B.Tech / B.E. (any branch) → PhDIUCAA accepts B.E./B.Tech degrees in any branch with 55% or more. IIA has an integrated M.Tech-PhD in astronomical instrumentation. Good if you like building instruments and electronics.
• Integrated M.Sc / BS-MS → PhDFive-year science programmes at institutes like the IISERs lead straight into research. TIFR also has an Integrated PhD (I-PhD) for BSc/BTech holders (reported). Check each institute's own notice.

Fees from: IIA – PhD eligibility and admissions · TIFR – Graduate School GS-2026 advertisement (PDF) · IUCAA – Ph.D. Programme · Joint CSIR-UGC NET December 2025 Information Bulletin (NTA/CSIR). Fees change every year — check the college's own fee page before you pay.

You are paid a fellowship (a stipend) during the PhD and postdoc years, and earnings rise only once you get a permanent scientist or faculty post. Pay depends on the institute, the post, and how long it takes to get a permanent job.

Some institutes relax marks for reserved categories. IUCAA's PhD route lowers the minimum from 55% to 50% for SC/ST/OBC-NCL/EWS and persons with benchmark disabilities (reported). IIA's AcSIR PhD asks 50% for SC, ST and OBC against 55% for General/EWS. Check each notice for the current year.

• Class 7–9This month, watch the sky on 3 clear nights. Use a free sky map such as Stellarium Web to find planets, the Moon's phases and a few constellations. Keep a notebook of what you see.Open link ↗
• Class 10–12Look up the Indian National Astronomy Olympiad (INAO) and past papers on the HBCSE olympiad site. Try solving 2–3 problems and see how you do.Open link ↗
• College or afterPick a free NPTEL physics or astrophysics course and do the first two weeks. Also try a small Python project that plots public astronomy data.Open link ↗

• IIA's PhD eligibility is strict: 60% aggregate through your academic career, an age limit of 28 (as of 31 May 2026), and a valid JRF, JEST or GATE Physics score at the time of admission.
• IUCAA's INAT-2027 form was reported open, with the last date 30 November 2026 and the test on 17 January 2027 (reported). IUCAA charges no fee to apply for INAT. Check iucaa.in for the current dates.
• IUCAA lets talented final-year B.Sc and first-year M.Sc students apply early to be pre-selected for a PhD scholarship.
• Think about a backup from the start. There are only a few hundred research posts in India. Physics, coding and data skills are also useful in data science, space technology and teaching.