The woman is identified as Nutan, police said, adding, according to an FIR filed by the victim's father, her husband Sidharth and mother-in-law Chader Devi were harassing her for dowry.
When the victim refused to oblige, they poured kerosene on her and set her ablaze yesterday, they said.
A case has been registered against Sidharth and his mother who are currently absconding and the body has been sent for post-mortem.
In an another incident, a 30-year-old man committed suicide by setting himself on fire over a dispute with his wife at Barla village in the district.
Rajkamal took the extreme step yesterday, police said, adding, the body has been sent for post-mortem.