Hello John,
First of all congrats to you for securing a seat in josaa. Now coming to question, if you selected float option in the first round in Josaa counseling, again if you want float option in further rounds then there is no need to report at the reporting center. If you want to freeze the allocated seat in round 2 to round 6 then definitely you need to report at the reporting center for freezing that seat. In round 7 it will be freezed automatically. so, if you want float option then there is no necessary to report at the reporting center during round 2 to round 7. If you want to freeze the allocated seat then definitely report at the reporting center during the round 2 to round 6.
Thank you.