PTRC payment for march month

Hi Experts, While making payment of PTRC for each month next month is to be selected. (Maharashtra) e.g. for making payment of Feb 19 for PTRC, March, 19 is to be selected. But while making the payment for Mar. 19, (Apr. 19 Month selected) the web portal is not allowing the same. Does anyone facing the same problem? Please suggest whether to select financial year 2019-20 to make this payment. Please advise.