According to me with only B. Sc you don't able to build a strong career after B. Sc degree you need to go for Masters after which you would have a career or you need to go for competitive exams.

If we talk about B. Tech you have a great career after B. Tech if you get placed. It is a 4 year course and you have a great job opportunity after that. 

aakriti dont worry many students face this problem,since you are confused between btech and bsc firstly what you want to do in future if you want to prepare for any civil services exam go for bsc and if you are interested in technology go for btech but for now fill councelling form for both btech and bsc