A Maoist rebel attack in eastern India has killed at least 27 people, including several local officials of the country’s ruling Congress party, the voice of America reports.Authorities say a large number of rebels on Saturday attacked a Congress party convoy in the densely forested Sukma area of Chhattisgarh state. Dozens of people were wounded.Among those killed was state party official Mahendra Karma, who had founded a local militia (Salwa Judum) to combat Maoist rebels. Also killed were state Congress party chief Nand Kumar Patel and his son. The Congress party is the main opposition party in the state, which holds elections later this year. Former federal minister Vidya Charan Shukla was among the 32 people wounded in the ambush, many of them seriously, police said, quoted by BBC. The main target of the attack is believed to have been Nandkumar Patel, who witnesses said jumped into a ditch with his son, Dinesh, to take shelter before they were abducted. Their bodies were later found nearby; the Congress chief was reportedly mutilated.The attack took place late in the afternoon Saturday as the convoy was returning to the state capital from a political rally.