Well , first of all congratulations for your achievement and about the colleges you can get, you can get admissions in top NIT's like NIT Surathkal, Nit Jaipur etc. But the important thing is that what branches are you interested in . If you are interested in C.S or IT , then you might get a good NIT but not sure about the top ones, but if the branches are not a priority then you might get even into the top 5 NIT. All and all i just want to conclude that have faith in yourself and trust in God , you have done your stuff and with a bit of luck on your side you might get C.SE or IT in one of the finest NIT's of our nation or you can also opt for some okay branches like Chemical, Bio technology, etc. in some really good NIT's. Choose wisely and i hope the best for you.

All the best