Online reconciliation of tds

koushik chatterjee (accountant) (25 Points)

24 February 2017  
I have deposited tds for December'16 on 7th January'2017 through online but by mistake in TDS qtrly return I have showed it on 7th January'2016 in place of 7th January'2017. IT dept. raised it as defaulter. How can it would be solved to clear the defaulter