I have 91% in plus two.Is there any problems to get admission in government Colleges for bsc physics?

Hello Vandana, there's no problem for getting admission in government colleges for BSc physics. It's your choice about what you want to do in the future after class 12th. You are eligible for any college across India because they require the aggregate % to be minimum 55% or 75% in some top colleges. But as you have not told about your category or what state you are from its very tough to predict what college you can get because there are so many colleges. I suggest you apply to your home state government colleges to avail home state quota.