Hello Jasbir,



Yes you can opt for BA after studying science till class twelve. You just have to opt for a subject that you are comfortable with. There will be no issue with catching up because the teachers are always there to help



Here are the best colleges that you can apply for:-



Jawaharlal Nehru University, Delhi

Banaras Hindu University

Christ University, Bangalore

St Xavier's college, Mumbai

Presidency University, Kolkata

Delhi College of Arts and Commerce



Here are only a few names. You can find other colleges online.