Hello Ashwini

So firsrt of all congratulations that you got admission in Bits Hderabad ,there are some chances of getting Upgradation to 4 year courses but then it would be an integrated course of 4 yrs,so if you are looking to pursuse a course in B.Tech then i would suggest you to go for some other colleges which consider your BITSAT score or you can try doing B.Sc and learning different things of your interest side-by-side like what B.Tech students do.