Hello Aspirant

Second extend round mean you can select a seat in round 2 if you don't want to join the clg u got in round 1 or if doesn't get a seat in round 1.

If you hold on to the seat that you are allotted and then wish to wait and participate in the next round I think that's okay, but if you give up the allotted seat and then wait and participate I don't think that's right because you may or may not be allotted a seat in the next round, that's what happened to my son. So think many times before giving up the seat. Then you can change the order of your options for the second round, you may re-arrange it.

Hope it helps

Thank you & Good Luck!!!