Hey Sam Krishna,

Computer Science is a good stream, to pursue anywhere. In Bihar too, there is a lot of scope. The top three colleges in Bihar for B.tech in Computer Science are:

1) Indian Institute of Technology IIT, Patna

2) National Institute of Technology NIT, Patna

3) Birla Institute of Technology BIT, Patna

Hope this helps.

Good Luck.

Hello Sam

Colleges list (Source: Careers360 )

Indian Institute of Technology Patna

National Institute of Technology Patna

Birla Institute of Technology, Patna

Bhagalpur College of Engineering, Bhagalpur

Gaya College of Engineering, Gaya

Darbhanga College of Engineering, Darbhanga

Indian Institute of Information Technology, Bhagalpur

Maulana Azad College of Engineering and Technology, Patna

Vidya Vihar Institute of Technology, Purnea