Hello Aspirant

All the admission for jee mains and advanced are through JoSAA and the basic rule that they follow.

JosAA decides the allocation of the seats that are provided to you.

So you will have to register yourself for JOSAA counselling and they will conduct rounds,according to seats alloted to you can can either slide,freeze and float the selection.

So there is nothing you can do you just will have to abide by the rules that are set

Regards!