Let's say I have a secured admission in a nit in josaa rounds, then I want to go for csab to see if I can get a better nit, but if I am not allotted any nit in there how do I go about getting my original seat that I got through josaa? Is it automatically allotted to me as my last option in csab rounds or is there anything I need to do? Also what if I just want to exit in round 1 with my josaa seat and don't want to go for 2nd round of csab, how do I do that. Thank you!