which branch of b.tech will be having the most scope after 4 years???basically i am intrested in cs

All branches have good scope subjected to where you stand eg in first 5 or last 5 .CS is always in great demand with the development & extensive use of computers in day to day life .

CSE has always good scope, because technology never come to end. Also i would suggest you to choose better university which offers good placements, studies. Have a look in Manav Rachna uni, Lovely Professional Uni, galgotia Uni. Best of luck.

CSE is good field you can get good job in software field other option is ECE and Mechanical