Brijeesh (23) was allegedly beaten and fed some poisonous substance last night by the husband Ved Prakash and his mother Sukhdevi, they said.
An FIR as been lodged against Prakash and Sukhdevi and the woman's body has been sent for postmortem, police said.
The family claimed that Brijeesh's in-laws demanded a car among other things in dowry which could not be fulfilled, police said, adding investigation is underway.