The victim sustained injuries on the chest but she was taken to the hospital two days later when she managed to contact her father over the phone.
Rita Khatun, 25, was admitted to Shaheed Ziaur Rahaman Medical College and Hospital in Bogra by her father Munser Ali on Monday.
That night, Munser filed a case with Shajahanpur police station against husband Abdul Mamun Rony, mother-in-law Mamataz Begum, father-in-law Abdul Malek and two other in-laws.
Police arrested Rony and Mamataz, while the other accused fled their house, according to Shajahanpur police.
According to locals and case statement, Rita of Jumainagar village at Gurudaspur upazila in Natore tied knot with Rony five years ago following a love affair.
Soon after the marriage, Rony started torturing Rita for dowry of Tk2.5 lakh.
As Rita’s family did not meet his demand, the torture on her only worsened.
The in-laws allege that Rony is a drug addict.
On Saturday, Rita locked into an altercation with her husband, as he did not bring a notebook for their son.
During the quarrel, Rony and his family members started beating her up and at one stage, the husband threw boiling water on her, which burnt her chest.
The family did not take her to any hospital for treatment.
On Monday afternoon, Rita managed to call her father in Natore over the phone for help.
Abdullah Al Masud Chowdhury, officer-in-charge of the police station, said the arrestees had been sent to jail.
Police were trying to arrest the rest of the accused, added the OC.