Hey Rohit, as you said that you are currently doing M.Tech from CMJ University and want to do Ph.D so for that you have to clear first your M.Tech

The Degree of M.Tech awarded by the CMJ University along with a Migration Certificate so you need to worry and focus on your studies

Here for your Concern I am providing you List of Top Ph.d Colleges in India

Amity University
Block - J 2, Ground Floor, Sector - 125, Noida - 201 303, U. P., India.

Anna University
Sardar Pa Road, Guindy, Chennai - 600 025, Chennai, Tamil Nadu, India.

Annamalai University
Annamalai Nagar - 608 002, Tamil Nadu, India.

Banaras Hindu University or B. H. U.
Varanasi - 221 005, U. P., India.

Jamia Millia Islamia University or J. M. I. U.
Jamia Nagar, New Delhi - 110 025, India.

Punjab University or P. U., Chandigarh
Sector - 14, Chandigarh - 160 022, India.

University of Calcutta or C. U.
Senate House, 87 / 1 College Street, Kolkata - 700 073, West Bengal, India.

University of Delhi or D. U.
Delhi - 110 007, India.

University of Mumbai or M. U.
M. G. Road, Fort, Mumbai - 400 032, Maharashtra, India.

University of Pune
Ganeshkhind, Pune - 411 007, Maharashtra, India.