THIRUVANANTHAPURAM: The letter written by Thiruvananthapuram Mayor to CPM District Secretary Anavoor Nagappan regarding vacancies in the Thiruvananthapuram Corporation was very controversial. After the letter became controversial, the Mayor said she had not written such a letter and Anavoor Nagappan said he never received the letter. An investigation was launched into the letter, which was claimed to be fake. But now, another such letter has been reported by a private channel. This is a letter that appears to be written by CPM District Secretary Anavoor Nagappan regarding people to be appointed to the Thiruvananthapuram District Mercantile Co-operative Society.