New Delhi, Oct. 15 -- India's telecom operators will have to introduce Calling Name Presentation (CNAP) across 4G and higher-generation mobile networks from November 1, 2026, under a directive issued by the Department of Telecommunications (DoT).

The service will display the caller's name alongside their telephone number on the recipient's phone screen. The caller name will be based on the subscriber records maintained by the telecom operator with which the caller is registered.

In a circular dated October 13, the DoT said telecom operators had conducted trials to introduce CNAP on 4G and higher-generation networks.

"All telecommunication service providers... are hereby instructed to introduce calling name presentation service in their...