The Telecom Regulatory Authority of India (TRAI) has mandated minimum call ring duration of 30 seconds for outgoing mobile calls and 60 seconds for landlines, before getting disconnected.
These regulations would be effective after 15 days from the date of publication in the official gazette.
However, as per the regulator, originating network may release an unanswered call after 90 seconds in case the call release message is not received from the terminating network.