As you have asked about the direct PhD programme at Tat institute of Social Sciences (TISS), I am giving you information about it, check below for the details

Research Areas Mumbai Campus
Habitat Studies
Public Health / Health System Studies
Management and Labour Studies
Social Work
Disaster Management
Education
Women's Studies
Development Studies
Social Sciences
Inclusive Development and Social Justice

Research Areas Guwahati Campus
Social Sciences

Research Areas Tuljapur Campus
Rural Development

The Ph.D. Programme is designed for candidates with a minimum of five years of post-graduate relevant experience in the field being proposed for research by the candidate.
Selected candidates can pursue Ph.D. either by staying on the TISS campus (subject to availability of accommodation) or from whichever location they are based in.
TISS does not make any distinction among research scholars as full time and part time

Contact:
Tata Institute of Social Sciences
Address:
V.N. Purav Marg, Deonar,
Mumbai, Maharashtra 400088
Phone: 022 2552 5000