Seven top Indian athletes, including Asian Games double gold-medalist Ashwini Akkunji, were handed bans for flunking dope tests. This virtually ends their chances of participating in the London Olympics next year.The seven athletes include six quartermilers – Mandeep Kaur, Sini Jose, Mary Tiana Thomas, Priyanka Pawar, Jauna Murmu and Akkunji and long jumper Harikrishanan Muraleedharan.While the six women athletes have been banned for a year, Muraleedharan has been slapped with a two year ban. The decision was announced at the National Anti-Doping Agency (NADA) headquarters in Delhi. All the athletes can appeal against their ban to the NADA appellate panel.