Pune police on Tuesday said they have got "vital" information on Saturday's blast from the CCTV footages even as two people with suspected links with Indian Mujahideen were detained in connection with the attack.
Police Commissioner Satyapal Singh said they have got the forensic report and it has established that RDX and ammonium nitrate were used in the attack at the German Bakery, a popular eatery in Pune.
"We have the CCTV footages. We have got some vital information from it," Singh told reporters in Pune.
"We received the forensic report last night. It has been established that the presence of RDX, ammonium nitrate and petroleum hydrocarbon oil in it," the Commissioner said.
The explosives were hidden inside a bag which was lying under a table in the cafe. It exploded when a waiter tried to open it.
Singh said 24-year-old Abhishek Saxena from Lucknow succumbed to his injuries last night, taking the toll to 10.
Police sources the two suspects were picked up from Janwadi area in Pune and Kudalwadi in the neighbouring industrial township of Pimpri.
One of the suspects, who was nabbed from Kudalwadi area, is believed to have been associated with Indian Mujahideen leader Riyaz Bhatkal during his stay here, they said.
However, Singh said he can "neither confirm nor deny" on being asked whether any arrests have been made in connection with the attack.