Though the Central Forensic Science Laboratory (CFSL) had ruled out the use of RDX in Wednesday's deadly blasts, Mumbai police officials have said they have not yet arrived at this conclusion because the local Kalina Forensics Science Laboratory (FSL) officials have said there are indications that RDX was used in the Opera House blast.
Mumbai police said preliminary information from the local FSL indicated the terrorists used a deadly combination of RDX and ammonium nitrate in the Opera House bomb. That bomb caused the maximum damage to life and property.
Police believe that RDX could have been used, that is why the maximum damage was caused at Opera House, as compared to Zaveri Bazar and Dadar. "The experts have prima facie confirmed the use of ammonium nitrate, but due to the rains and other factors the detailed report will take longer. We need that to confirm the exact nature of the bombs used in the crime," said ATS chief Rakesh Maria.