Cheni, April 11: A PMK activist suffered an electric shock on Wednesday after climbing atop a train engine here during a shutdown called by the party against the Centre’s failure to set up the Cauvery Magement Board (CMB). But normal life was largely uffected in Tamil du although reports reaching here said that shops were closed in Cuddalore, Dharmapuri, Villupuram, Mettur and in some other places where the PMK wields influence.