The Telecom Regulatory Authority of India (TRAI) on Friday withdrew its complaint against three major telecom operators Bharti Airtel, Idea Cellular and Loop Mobiles in a case related to rejection of number portability requests from their subscribers in violation of the TRAI regulations.

The regulator decided not to pursue the case after it was assured by these operators that they have taken corrective measures to address the issue. 

These operators had communicated to TRAI through a letter that they have taken sufficient corrective and remedial measures to ensure that such violations do not occur in future.

The telecom regulator said that considering the contents of the letter, it has decided not to pursue the complaint and the same is being withdrawn.

The regulator withdrew the complaint on the day the top officials of the three firms were to appear before the court in response to its summonses issued on March 21.

The complaint before the CMM court against Airtel, Idea and Loop concerned alleged violation of norms that permitted subscribers to switch over from one service provider to another without change of their mobile phone numbers.

TRAI also withdrew another complaint against Bharti Airtel pending before the court of Additional Chief Metropolitan Magistrate Manish Yaduvanshi.

The complaint pertained to alleged violations of TRAI norms of terminating the service of a customer within 24 hours of receipt of request and refund of security deposit within 60 days of termination.

The complaint was withdrawn as TRAI said the company had in a letter informed that it has redressed the grievances of its customer and has taken remedial measures.

The telecom regulator had in its complaint said after it launched mobile number portability in January 2011, it had directed all service providers including Bharti Airtel, Idea and Loop Mobiles to furnish compliance of various provisions of the Telecom Portability Regulations.