The Telecom Regulatory Authority of India (TRAI) is planning to implement stricter regulations to improve the quality of telecom services and reduce the number of spam calls. The new regulations will also target multiple SIM users and will result in financial losses for major telecom companies like Jio, Airtel, and VIL. The decision comes after TRAI denied charges of allowing multiple SIMs and highlighted their efforts to curb spam calls. Moreover, with the mobile number porting reaching 100 crore mark, the TRAI's crackdown on spam calls is expected to bring relief to mobile users across India.