Question

will we get more marks by ticking Physically Disability in board.

Answer 1

I don't think so mate.
They already have the documents to know whether you are physically disabled or not.
But if you are...
Well then you may.

Answer 2

if your are then you should but if you are not handicapped and did this ,you will be punished if found out , you sheet might be disqualified,
remember they are not fools sitting there.