PRBT STV 187 offers Unlimited voice calls to any network while in Home LSA and National Roaming (Except Mumbai and New Delhi) + 1GB free data usage with FREE Caller Tune which comes with 28 days validity.
The above STV with effect from 8th November, 2017 onwards and available for a period of 90 days for Andhrapradesh telecom and Telangana telecom circle Prepaid mobile users.
For more information Dial 1503 BSNL Mobile services