The chief executive of Republic TV, Vikas Khanchandani, is being questioned by the Crime Branch of the Mumbai police in the case involving the alleged rigging of television ratings for profit. The channel's CFO Shiva Subramaniyam Sundaram, was summoned on Saturday, but he asked that it be rescheduled. The owners of two TV channels -- Fakt Marathi and Box Cinema -- are among the four people arrested in the case.