i m studying bsc with cs honors.so pls tell me can i study mechanical engineering after bsc .i also have subjects like math phy chem .

I agree with Prajakta. To my knowledge, Engineering after BSc is not allowed.

After BSc in CS studying Mechanical Engineering will totaly change your domain y dont u luk for post graduate degree in CS itself like MSc or MCA or MBA in Systems or IT. Inspite BSc with MCA is equal to engineering. Think twice before making a decision.