Hello soumyshree 

According to previous year cut offs, it will be hard for you to get any Integrated M.Sc. course in NIT Rourkela.

But there is a chance in life science if you are from home state.

If you are able to get it, I would not go for life science instead I will only opt if I get Physics.

To get admission, you need to go through Central Seat Allocation Board (CSAB) after qualifying JEE main of same year. No other means of admmission are available at NIT Rourkela.

All the best