Add zero before phone number, asked by TRAI

 The telecom regulatory Authority of India (TRAI) released a recommendation on Friday, whenever you called with your landline add a ZERO before the number you are calling.

However Airtel and JIO also ask their Xstream and fiber customer to add zero as prefix to the number they are calling.

In November 2020 Dot (Department of telecom) accept TRAI proposal and started it from 15 Jan 2021.The department notice that by doing it there will free sufficient numbering resource for future use.