I have joined as first year student at P.M college sonipath in b.tec .. Can i change to some other better college after first semister .

yes you can change but may be after 1 year when the fresh session starts & also u have to start afresh i.e your 1 yr will be totally wasted so if you want to take the risk bttr start preparing for the engineering entrance xams to improve your rank, only your hardwrk can take you to a bttr cllg nothi

you can change college under same university , you will have to take approval from one college to transfer your enrollment to another college