The main gas supply line to Narsingdi was damaged during construction work on a drain, according to Titas Gas authorities
The incident took place on Sunday morning in the Hajampara area of Shailkupa Upazila, said District Additional Superintendent of Police (Shailkupa Circle) Tarek Al Mehedi.
The dead has been identified as Jannati Khatun.
Police have arrested the girl’s mother Aleya Begum.
Superintendent Mehedi said that Jannati’s mother slapped her after she refused to eat rice.
She subsequently fell ill and was rushed to the Shailkupa Upazila Health Complex, where doctors on duty declared her dead, he added.