Consider the following example, in which the error Partially overlapped can occur.
A Stat Payment already exists (made on 12-Dec-2018) for a particular period (1-Nov-2018 to 30-Jan-2019). If another stat payment is recorded (on 12-Jan-2019) for an overlapping period (1-Jan-2019 to 31-Jan-2019), the error Partially overlapped occurs while saving the voucher. To correct this:
Gateway of Tally > Display More Reports > Statutory Reports > TDS Reports > Challan Reconciliation.
Alternatively, Alt+G (Go to) > type or search Challan Reconciliation > Press Enter.
View the TDS Challan Reconciliation report for any date on which the payment entry was recorded (12-Dec-2018, in this example).
Click L: Show All and correct the To period for the voucher (as 30-Nov-2018, in this example), and save it.
Now you can record a new Stat Payment voucher.