Can i do astronomy if i had bio as my base subject in 12th but maths as an optional one?

The Inter-University Centre for Astronomy and Astrophysics (IUCAA) is a premier research institution in India that offers a Ph.D. program in Astronomy and Astrophysics. The fee structure for the Ph.D. program at IUCAA is as follows: Admission Fee: Rs. 500/- Tuition Fee: No tuition fee is charged by IUCAA. Hostel and Mess Charges: Students are required to pay for their accommodation and food expenses. The hostel fee at IUCAA is approximately Rs. 12,000/- per semester (for a single occupancy room), and the mess charges are approximately Rs. 3,500/- per month. In addition to the above fees, students are also required to pay for other expenses such as travel, books, and research materials. However, IUCAA provides financial support to its Ph.D. students through research fellowships and travel grants. IUCAA also offers scholarships to deserving students, including the Swarna Jayanti Fellowship, the Visiting Fellowship, and the Senior Research Fellowship. These scholarships provide financial assistance to students to cover their research expenses and travel costs. It is advisable to check with the IUCAA website for updated fee structures and scholarship opportunities. Please upvote if it was helpful