hello,

yes there is a difference between BSC and B.Tech. If you want to be more research oriented then you should opt for Bsc. But if you want a more job oriented then opt for B.Tech. Both have equally importance in there own field. Let me tell you my friends are also doing Bsc courses in various subjects and i am doing B.Tech, the only difference we face in our placements packages. But after 1 or 2 years we both become equivalent to each other. I am saying this because i have seen many many such examples.

But if you want to do givernment job then its better to give 3years of graduationthan 4 years. Also if you want go in research field opt for Bsc.

hope this will help you.