In cases of spectrum allocation where the telecom operator opts...

In cases of spectrum allocation where the telecom operator opts for deferred payment instalments as per the Frequency Assignment Letter (FAL) issued by Department of Telecommunications (DoT), it constitutes a continuous supply of services. The time of supply and GST payment liability arises when the instalment payments are due or made, whichever is earlier. For upfront full payment, GST is payable when the payment is made or due, whichever is earlier. Similar treatment applies to allocation of other natural resources by the government with deferred payment options, constituting continuous supply of services under GST law.