MUMBAI, Oct. 10 -- Who is someone calling? Where have they been? Whom have they been meeting or having an affair with? Information that should remain private was obtained for a price by a racket operating with the help of police personnel, the Mumbai Crime Branch has found while busting an illegal trade in confidential mobile phone data. The racket allegedly procured and sold Call Detail Records (CDRs), Subscriber Details Records (SDRs) and mobile tower locations, allowing clients to track people's movements and contacts. Seven accused have been arrested while two police constables posted in Jharkhand and Bihar have been booked. The Crime Branch seized 50 CDR records, data pertaining to 520 subscribers, 550 location records or tracking instances, 420 International Mobile Equipment Identity (IMEI) details and seven mobile phones. The gang charged different amounts depending on the purpose. In suspected cheating cases between couples, for instance, the accused charged Rs.5,000. "We came to know that the person was claiming on social media advertisement that he was a police officer, identifying himself as inspector Sanjay. He could help the person find his phone as he used to get CDR, SDR and location through which it was easy to find out who was using the phone and where," said Navnath Dhavale, deputy commissioner of police, Crime Branch. A team comprising Sandeep Yede Patil and Balasaheb Raut posed as dummy customers and contacted Hanjala Mubarak Sayyad, arranging to meet him on SV Road in Jogeshwari West. He was arrested when he arrived. "We traced the others and picked them up from various places in Maharashtra, Jharkhand and Bihar," said Raut. The police subsequently registered a case against Pankaj Kumar Mukthar Shukla, a constable with Dhanbad police, and Prince Kumar Pravin Sahani, a constable from Bihar's Vaishali district. In one instance, a businessman whose premises were raided by GST officials allegedly procured CDRs of all his employees. Ordinary citizens cannot directly obtain another person's CDR or SDR from a telecom provider; access is restricted to authorised processes for legitimate investigative purposes. An FIR was registered at Oshiwara police station under Sections 318 (cheating), 319 (cheating by personation) of the BNS....