Hey Chethan, 

TISS BAT is an entrance exam for pursuing BA Social sciences and B A social work from TISS. TISS BAT does not just evaluate the objective skill of students but also the subjective answer writing skills. Definitely, both of these courses give you a strong fundamental basis for IAS and IPS because if you are a social science student you will be studying a variety of subjects like history, psychology,  political science, sociology etc. The teaching of these subjects gives you a wider understanding and perspective on various social issues. If you choose BA  social work as your area of interest you will learn how to engage with the community and practical solutions of many social issues. You can look at the  courses and subjects taught under both the courses on the following links

Http://admissions.tiss.edu/view/10/admissions/ba-ma-admissions/bahons-in-social-work-with-specialisation-in-rural/

Http://admissions.tiss.edu/view/10/admissions/ba-ma-admissions/bahons-in-social-work-with-specialisation-in-rural/

 Hope it helps you.

Best wishes

Hello Chethan,

Candidates who wish to admit themselves in the UG programmes offered by the university The Tata Institute of Social Sciences.

The Tata Institute of Social Sciences conducts admissions every year for candidates who wish to enroll themselves in its prestigious undergraduate programmes. TISS, Tuljapur, offers B.A. (Hons.) in Social Sciences and B.A. programme in Social Sciences. TISS, Guwahati, offers a three-year B.A. programme in social sciences. 

For more details please visit the link given below -

https://university.careers360.com/articles/tiss-bat-exam-pattern

Hope this helps.