Our company is having certain liabilities on 31st May, 2016 for which we have received invoices before March 2016 ( excluding KKC).
Neither party has issued us revised invoice for KKC nor they asked us to pay amount with KKC.
If we make payment after 1st June 2016 , whether we required to settle the liability as per the issued invoice or with KKC , although we have old invoice only ( with 14.5% service tax).