Chennai, May 17: The Tamil Nadu Government Collegiate Teachers' Association today decided to join the nation-wide strike on May 21, called by some central trade unions. Association general secretary K Ganesan, in a statement, said that teachers of government colleges coming under the Madurai Kamaraj and Manonmaniam Sundaranar University would boycott valuation work on that day. The association members in the rest of the state would stage demonstrations in front of the examination valuation centres, he added.

Bureau Report