Dear Devkant, 

BCA or Bachelor in Computer Application is a under graduate course of 3 years. It mainly consists of hardware and software aspects of computer applications. The basic eligibility for this course is 10+2 with relevant science subjects. The fee structure for bca in India ranges from 10,000 - 7 lacs. There are many colleges offering this course in India. Some of the top colleges are :

1. VIT University. 

2. National Institute of Management.

3. DAV College. 

4. Xavier's Institute of Computer Application.