Itc on capital goods and reversal

I have bought captial good on Feb and claimed ITC in Sept only. 

I have claimed ITC as full in Sept GSTR 3B and show split in GSTR 2 later. 

Or I should show month wise allowed ITC on every month 3B. 

Also in case if I have reverse some ITC of Feb month which I claimed in Sept, Interest should be calculated from sept or Feb. 

Thanks in advance