In the case of selecting the online modes of GST payment, if a pre-login challan is created, the taxpayer must complete the payment right away. Whereas, in the event of post-login challan formation, a taxpayer can wait up to 15 days to finish the payment.
Similarly, in the event of Offline payments, there is a time constraint of up to 15 days to complete the payment after the issuance of challan and generation of CPIN.