While one of the two persons died last night, the other succumbed to his 100 per cent burns in the early hours today at the Thane Civil hospital, they said.
The deceased have been identified as - Fulchand Prasad (35) and Navman Yadav (32).
One person was yesterday killed in the mishap.
Another person who also sustained 100 per cent burns in the explosion is battling for life, doctors at the civil hospital said.
The Shil Diaghar police have booked the owner of the godown, identified as Ajmal, under section 304 (punishment for culpable homicide not amounting to murder) of the IPC.