Hello Akanksha,

You may absolutely choose Biology as a second subject on the NEET! I've also sent you some information on eligibility for your reference:

Candidates must ensure they meet the NEET eligibility requirements as stated in the following points:

He/She has to be of Indian citizen.

Candidates need to have a 12th-grade graduation in Physics, Chemistry, and Biology or Biotechnology (PCB).

Additionally, he must have received at least a 50% grade at the higher secondary level (or 40% for the restricted category) (12th).

Thank You