The body of Rajender, who died of heart attack, was kept at the mortuary on Wednesday night, the officials said on Friday.
Kharkhoda police station SHO Inspector Bijender Singh said Deepak was found dead in a room while half-burnt bodies of his parents bearing head injuries were recovered from other rooms.
The order has been issued to prevent any disturbance of peace and public order in the jurisdiction of these districts of Haryana and shall be in force with immediate effect.
While seven people died on Monday, nine and four died on Tuesday and Wednesday. The family members of the sixteen deceased cremated the bodies without informing the police.
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