Four members of a family sustained injuries in an LPG cylinder blast at a house in the Malakpet area here.
The incident occurred on the intervening night of February 29-March 1.
The condition of the four victims is stable. They have been identified as Laxmaiah, Yadamma, Mukesh, and Tejaswini.
A case has been registered by Malakpet Police and further investigations were on.