The incident came to light when the brother of Poonam, married to one Dhirender, went to meet his sister at her house in Bhensi village on the occassion of Bhai Dooj.
On not finding her there, he reported the matter to the police, alleging that Poonam has been killed by her in-laws.
A case has been registered in this connection and a probe is on, police said.
In a separate incident, a 20-year-old man has been reported missing after he had gone to visit his sister in Purkazi on Bhai Dooj yesterday.