BSNL Customers send sms “BT DCT” to 56700

Vodafone Postpaid Customers send sms “Can CT” to 111

Vodafone Prepaid Customers send sms “Can CT” to 144

Bpl Postpaid Customers can dial *800# for any service request

Bpl Prepaid Customers can dial *555# for any service request

Reliance Mobile Customers send sms “unsubct” to 51234

Airtel Customers can call *678#