Double payment of tds.

MANOJ (EMPLOYEE AS ACCOUNTANT) (91 Points)

12 April 2016  
Hi, Unknowingly i have made double payment of TDS against Section 94J in the month of March'16, but return is yet to be filed against it. So, My query is, How do I claim refund of excess payment of TDS? & When? or is there any other way to adjust the same?