Hi swaggy ,

Yes definitely you can study under computer science feild it has mo corelation between your 12th board syllabus and your btech carrer once you get qualified any engineering exam you get eligible to pursue your btech in amy branch.

Hope it helps!!!

Hello Swaggy, Greetings!

Yes, surely you can go for Computer Science in engineering colleges or do BCA after class 12th.

Computer science and engineering is an academic program at some universities that integrates the fields of computer engineering and computer science. 

You can give JEE Mains and other examinations to get admission in CSE stream.

Thank you, best of luck.