Hello prasenjit

There are 49 or 50 colleges in Kolkata which offer CSE .I am providing you the list of top 10 colleges :

1 University of engineering and management

2 JIS College of engineering

3 Jadavpur university

4 Narula Institute of technology

4 Netaji Subhash engineering college

5 Guru nanak institute of technology

6 Maulana Abul kalam azad institute of technology

7  Heritage institute of technology

8 Budge budge institute of technology

9 Government college of engineering and ceramic technology

10  Techno india college of technology

Hope it helps!