Due date of deposit of tds

AJAYA PRUSTY (Cost Accountant) (26 Points)

14 February 2017  
Dear Friend, Please suggest me when to deduct TDS on salary if salary for the month of April is paid on May. What is the due date of Deposit of TDS in the above case. Is there any interest I have to paid if TDS on above Case is Deposited on or before 7th June.