The 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.A senior ATS official has said that a sketch of the suspect is ready and it will be circulated among the select and top investigating officials and not be released to the public.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.The Mumbai Police has ordered a CID enquiry into the death of Faiz Usmani ,the brother of 2008 Ahmedabad blast suspect Afzal Usmani today. Earlier, officials of Crime Branch were questioning Faiz Usmani. Faiz Usmani was admitted yesterday evening to Sion Hospital in Mumbai after he fell ill and he succumbed to Brain Hemorrhage yesterday late night.