Hey Aamir.

See for getting seat in the govt colleges other than JoSAA that means u are neglecting all the NITs , IIITs , GFTIs for admission. For getting admission in other colleges u should be giving their entrance exams or if they come under state college then apply for that. U can also apply for COMEDK , SRMJEEE , VITEEE ,etc for pursuing ur higher studies in btech.

Hope u got ur point. Ask if any query.

Good luck