Police recovered the body of a woman from a paddy field in Kalirbazar union of Comilla Adarsha Sadar upazila on Sunday.
The head of Farzana Islam, 28, had been smashed in and her hands had been tied up, said police.
Her husband and in-laws are on the run, according to them.
Farzana's uncle Hafizul Islam said her husband, Iqbal, had just returned from a drug rehabilitation centre. Iqbal took Farzana to his home on Saturday after his return, Hafizul added.
On Sunday morning, Iqbal phoned Farzana’s parental home and said someone had murdered and left her in the paddy field.
Hafizul said Iqbal used to beat up Farzana after taking drugs. “He must have killed my niece and fled,” he added.
Cantonment Nazira Bazar police outpost In-Charge Mohiul Islam said there were big bruises on Farzana’s head. She had been bound and gagged, he added.
Her body would be sent to Comilla Medical College Hospital for autopsy, the police officer said.