PM condemns ' dastardly ' attack on Congress workers in Chhattisgarh - Indian Express PTI , PTI : New Delhi , Sun May 26 2013 , 01:39 hrs Prime Minister Manmohan Singh tonight strongly condemned the " dastardly " Maoists attack on Congress leaders and workers in Chhattisgarh and appealed to the attackers to release at the earliest all those who may have been abducted .