Rate of interest on Reverse ITC

Nrusingh Beura (55 Points)

27 April 2020  
Dear member, i have a doubt in two Sceinareio.
1. Rate of interest in ITC to be reverse which is ineligible but you availed it.
2. You availed ITC but your supplier is not filed his return , now you decide to reverse it & issue debit note(including interest amount)

please suggest.