Maharashtra ATS has claimed to have gained good lead in the Mumbai blast case. While addressing the media, at a press conference in Mumbai , the Chief of Maharashtra Anti Terrorist Sqaud (ATS), Rakesh Maria said that ATS teams have been sent to various states including Karnataka, Gujarat, Andra Pradesh,Madhya Pradesh, Rajstan, Uttar Pradesh, West Bengal, Delhi and are looking at all the possible avenues related with the probe. He said that said that according to initial forensic reports, the explosive used in Wednesday's tripple blasts, were kept in metallic containers and the explosive material was ammonium nitrate with digital timer. Meanwhile, Faiz Usmani, brother of 2008 Gujarat blast suspect Afzal Usmani, died in a Mumbai hospital after being questioned by police in connection with Wednesday's serial blasts in the city. Faiz Usmani, was picked up for questioning by the Mumbai Police and was admitted to the Hospital after he fell ill last evening. According to doctors at the Hospital, Faiz succumbed to Brain Haemorrhage and there were no external wounds found on his body. Mumbai Police officials have said that Faiz Usmani was called only for questioning and was not tortured as alleged by his family. They also claimed that Faiz Usmani had a history of Hypertension.