The Special Investigation Team (SIT) from Andhra Pradesh, which is looking into the phone-tapping issue related to the cash-for-vote scam, served a court notice to Telangana home secretary Rajiv Trivedi in Hyderabad on Thursday.
The metropolitan magistrate court issued the notice to the department of home affairs in Telangana, directing them to keep the tapped phone records safe and hand them over to the court when asked.
Trivedi has responded saying he would abide by the court's order.
Following the notice, employees at the secretariat held protests against the three-member SIT, a report in the Times of India adds.
The SIT was constituted on June 21 after the state's Minister for Irrigation Devineni Umamaheswara Rao filed a complaint in Vijayawada.
Following this, the team sought call data from service providers and moved the case to the Supreme Court on July 22, which in turn directed service providers to provide the call data to the Hyderabad high court.
The Hyderabad high court later, stayed proceedings in the case for four weeks on July 30.
The report also quotes sources who claim that the notice was served to protect the data of Andhra Pradesh ministers and their relatives.