In Kerala, BJP and Congress workers staged a protest outside the Thiruvananthapuram Corporation office today, demanding resignation of Mayor Arya Rajendran. Protests turned violent as the Police used tear gas and water cannons to disperse protestors.<br />''<br />''The opposition party workers demand the Mayor's resignation over a letter she allegedly wrote to a top ruling CPI(M) leader, asking for a priority list of party cadres to be appointed in temporary posts in the civic body on 1st November.<br />''<br />''Meanwhile, the Mayor has denied having written or signed any such letter. The Crime Branch is investigating into the matter.<br />''<br />''Meanwhile, the Kerala High Court today served a notice to the Mayor and the State Government over a plea seeking a CBI probe into the letter controversy.<br />''<br />''The court informed that it would consider the plea after hearing Ms Rajendran's response on the matter.<br />