Dear Vijay,

Yes, it is possible.  If you have studied PCM (physics, chemistry, biology) combination in your class 12th you can go for computer science. But, you can't migrate from mechanical to computer science if you are in between the course. You can migrate only in the first year of mechanical diploma. If you still want to go for computer science, you have to start from 1st year in computer science if your are in between diploma in mechanical course. Feel free to drop any query related to this or else. We are always ready to help you.

Hope this helps.

All the Best!!