Change of A.Y 2019-20 to 2020-21.

Reng Hmangte (Entrepreneur) (8 Points)

15 June 2019  
I putted in challan form filling wrongly when depositing in bank, it were in two occasions and it must be for Quarter no: 1, for A.Y 2020-21. while filling by mistake I putted 2019-2020. challan deposit were almost two months.
please help me to resolve this problem.
I'm an individual helper for filing and depositing TDS.