The CBI has interrogated former Trinamool Congress and currently a BJP leader Mukul Roy in connection with Narada tapes scandal. He was questioned by CBI sleuths for about three hours at the agency's office in Kolkata yesterday.<br />'' <br />'' Talking to newspersons after leaving the CBI office, Mr. Roy said he was innocent. He alleged that he was falsely implicated in the Narada scandal by West Bengal Chief Minister Mamata Banerjee. Mukul Roy asserted that he had not taken any money. <br />'' <br />'' It may be recalled that the Narada videos, released ahead of the 2016 West Bengal assembly polls, purportedly showed some Trinamool Congress leaders and the then Superintendent of Police, Bardhaman district, SMH Mirza were seen accepting money from the representatives of a fictitious company in return for favours. <br />''