greetings dhruvraj,

following is the list of best BCA colleges in india, not many govt colleges offer bca so there are a few pvt colleges as well:

• GGSIPU
• symbiosis university
• christ university
• st xaviers
• SRM university
•  IIFA LANCASTER Degree College 
• IMS noida

if you are a science student you can study Bsc hons computer science, thats a better option. it is available at many govt colleges like delhi university, jamia milia islamia etc

hope this helps.

good luck