MUMBAI: Central security agencies, probing the multiple train blasts here, are veering to the view that RDX was used in triggering the explosions, sources said here on Thursday night.
 
The tests of the samples collected from the site are at the final stage and "99.9 per cent chances are that RDX was used and kept in the train compartments," they said.
 
The security agencies are ascertaining if gelatine sticks were used to set off the blasts, they added.