Hey,

Some of the colleges that offer Maters of Science in Biotechnology are:

Osmania University college for women

A.V College of Arts Science and Commerce

University of Hyderabad

Osmania University

Government City College

GITAM  School of Science

Institute of Science and Technology

Some of the colleges that offer Masters of Science in Biotechnology in Tamil nadu are:

Loyola College

Stella Maris College

Women's Christian College

Dr. NGP Arts and Science College

Sri Ramakrishna College of Arts and Science

Hindustan College of Arts and Science

Bharathiar University

Admission process is based on entrance exams such as JAM or GATE.

Hope this helps.

Good luck.