The court fined him Tk one lakh under section 302 of Penal Code.
Besides, under section 20 and 7 of the Penal Code, the court sentenced him to life term imprisonment for the attempt to murder Kaberi’s husband and two daughters, leaving them injured.
Under the sections, the court also fined him Tk 50,000, in default, he has to serve one year more imprisonment.
The case was filed by Krishna Kaberi’s brother-in-law Sudhangshu Shekar Bishwas with Mohammadpur Police Station accusing Zahirul as the lone accused.
According to the case statement, it was alleged that on the night of March 30, the killer entered the flat of Sitangshu to greet him on his belated birthday. Then Zahirul hit his head with a hammer after drugging him with contaminated juice.
As Krishna wanted to save her husband, the killer hacked her with a kitchen sickle and later set her on fire. She died the following day.
Sitangshu, deputy director of Bangladesh Road Transport Authority, and their 14-year-old daughter Srabani Biswas Sruti and eight-year-old daughter Arti Biswas were also injured in the attack.