Top colleges offering MCA in science courses are:

• Department Of Computer Science, Savitribai Phule Pune University, Pune.
• School Of Computer And Systems Sciences
• Jawaharlal Nehru University, Delhi.
• School Of Computer And Information Sciences
• University Of Hyderabad, Hyderabad.
• National Institute Of Technology, Tiruchirappalli.
• Birla Institute Of Technology, Mesra.

These are some of the good colleges that offers these courses and also impart quality education.

Hope it helps!!