Arvind Kejriwal's Aam Aadmi Party has hit out at the Congress for appointing senior leader Kamal Nath as its general secretary in charge of Punjab, where assembly elections will be held early next year. AAP's HS Phoolka today resurrected allegations that Mr Nath was involved in Delhi's anti-Sikh riots after former Prime Minister Indira Gandhi was assassinated on October 31, 1984.