Airtel, TATA Docomo, Reliance
Disturbing messages and pre-recorded calls

Sir,

All these service providers, and many more have made mine & friends lives a hec. These service providers (SP) always sends advertizing messages and recorded calls on our mobiles, untimingly, that is any time in the day, and they are like non-stoping, like during driving, eating, meetings, classrooms, and more over when we are sleeping at 3:00 clock in the night. Therefore please try to stop them, so that we can concentrate on our works and get a sound sleep, atleast at night.