Hello Venkatesh,
The Indian Institute of Astrophysics, Bengaluru offers PhD courses to candidates. The institute offers admission on the basis of the interviews done after the successful submission of applications by candidates.
IIAST does not conduct a written test. The candidates are selected on the basis of applications filled by them. The short-listed candidates are interviewed at IIA Bangalore to have a shot at admission.
The online applications are made available during the last week of September and they are ought to be submitted by the last week of October. The interviews are held during the months of May prior to the submission of forms.
The qualifying degree must be completed successfully by the candidates. They must also have a consistent academic record with 60% or more from class 10 onwards. They must also have either of the following:
You can look up to the following link for more on the same, from the official website:
https://www.iiap.res.in/PhD2018_Sept/Guidelines
Hope this helps you. We wish you the best for your future endeavours!
Regards
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