Yes of course you can participate in csab also even if you get a seat in in josaa. Even if you have taken admission in the college you got in josaa you can participate in csab. The choice filling in csab is completely a different part than josaa. You can get better college

Hello,

You can definitely participate in CSAB rounds even after accepting a seat in JoSAA rounds. It is a very common practice and is one of the reasons for a sudden spike in closing ranks in the very last round of CSAB. Though there are some special rules and procedures to follow to participate in the very last round (like giving some affidavits, etc). I hope it helps.

Thanks