Ph.D

Please mention the name of the university.

Go for Masters in BM from a good college in the field of your interest.

Here is the official link with relevant information:
http://www.iiserpune.ac.in/academics/int-phd-programme

Here is a link that can help you:
http://www.tifr.res.in/~dbs/students/int_phd.html

The duration can be anywhere between 2 and 5 years.

I am listing below do check the list:
Academy of Scientific and Innovative Research
Amity School of Communication, New Delhi Institute of Pharmaceutical Sciences and Research
Faculty of Education - Jamia Millia Islamia University
Indian Institute of Technology Delhi
Indira Gandhi Institute of Physical Education & Sports Sciences
Indira Gandhi National Open University.

Kindly visit this link:
http://www.pumba.in/programs/phd.htm

Hi Vaibhav,
Kindly visit the university's website and get in touch with the administrative official.

Kindly contact the university.

Please use Google for this. I didn't understand the relevance of tagging PUMBA for this.