As the Mumbai police investigate the alleged manipulation of Television Rating Points scam, the Central Bureau of Investigation on Tuesday registered a case to investigate the ratings scam based on a complaint filed in Uttar Pradesh. The cenral agency took over the probe from Lucknow police on the recommendation of Uttar Pradesh government. A case was registered in Lucknow’s Hazratganj police station on the complaint of a person named Kamal Sharma, which was transferred to the CBI. The FIR has been registered against unidentified people. The charges include manipulating the TRPs using forged means. The alleged scam was brought to light by Mumbai police earlier this month which registered a case. Republic TV is one of the four channels being investigated. Six people have so far been arrested by the Mumbai police.