Four more Indian athletes were caught for using banned substances during the Federation Cup Senior National Championships in Patiala last month. This was stated by the National Anti-Doping Agency Director General Rahul Bhatnagar in New Delhi today. He said the samples were collected from the athletes who participated in discus throw, javelin throw and hammer throw in the Championship. Three of them who had tested positive for steroids have been provisionally suspended. He said that the athletes caught for doping belong to Punjab and Allahabad and there were no big names involved.