Fulltime classroom based BA in Social sciences is provided at TISS. 

BA in psychology is not provided at TISS Campuses. 

List of all courses below. 

https://admissions.tiss.edu/view/10/admissions/ba-ma-admissions/integrated-ba-ma-programme-in-social-sciences/

Hii

Tata Institute of Social Sciences, Mumbai doesn't offer BA Psychology. It offers Post Graduate Courses like-

MA Disaster management

MA Entrepreneurship

MA Health Care Management & others.

To know other courses offered by Tata Institute of Social Sciences, Mumbai, CLick below Link-

https://bschool.careers360.com/colleges/tata-institute-of-social-sciences-mumbai

All the best.