Roy marked his letter to Union minister of state Jitendra Singh, who looks into the personnel, public grievances and pensions department, saying their conduct needed to be referred to the Centre for enquiry and departmental action.
Banerjee also threatened to file civil and criminal defamation suits if the same was not done.
West Bengal government today iterated that the Biswa Bangla Marketing Corporation is totally owned by it and is not a private entity.
It claimed that Roy's statements with regard to the ownership of the "Bishwa Bangla" logo and "Jago Bangla" newspaper were "false" and sought an unconditional apology from the former Trinamool Congress (TMC) leader within 48 hours. Though Subhrangshu Roy disagreed with his father's joining the BJP and swore by Mamata Banerjee, he stayed away from the meeting.
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Refuting Roy's comments relating to Biswa Bangla Marketing Corporation, two senior West Bengal government officials had on Saturday said the company was wholly owned by the state government.
Roy said the TMC government was "suppressing and pressuring every constitutional body" and that was a reason why he had opted to become a voter from Delhi because it would allow him to voice his opposition to the West Bengal regime.
Kamal said he was astounded by the energy and enthusiasm of "your chief minister who makes this effort year after year". "It is a government company", Rajiva Sinha, secretary to the state MSME and textile departments told newsmen here.
"If anyone claims that it (Biswa Bangla) is a private company, it is wrong. The allegations are completely baseless", home secretary Atri Bhattacharya said soon after Roy's statement.