3. Darbha Valley, Chattisgarh, 2013 Naxalites struck a body blow to the state Congress leadership in Chattisgarh on 25th May 2013, when insurgents belonging to Communist Party of India (Maoists) attacked a convoy of Indian National Congress leaders who were headed for a election rally. In all 27 people, which included Mahendra Karma, leader of a counter Maoist movement and Nand Kumar, Patel, president of state congress unit were brutally attacked and killed in the ambush on the convoy. Vidya Charan Shukla later succumbed to his injuries on 11th June.