BHIWANDI: A woman and her stepfather with whom she had a illicit relationship killed her fourteen-month-old baby girl as the toddler would cry and disturb them while they were having sex in Bhiwandi.

The police on Friday arrested child's mother Janatulfir Ansari, 23 while hunt is on for child's step-grandfather Rasheed Ansari, 40 who is on run.

The Bhiwandi city police said on Tuesday night accused Rasheed killed his granddaughter by beating her with Janatulfir's sandal and after which duo made false story before cops that the toddler died as she fell while walking.

Police said after registering accidental death report when they started probe into the matter found that victim's father works in Mumbai while her mother along with her stepfather were living in same house in Nai Bastee area in Bhiwandi.

Police said during further probe they found from neighbors that in last few months both woman and her stepfather was in illicit relationship and both would used to irritate with child in house.

"As per the postmortem report which suggested child was died due to injury marks on her body, when we grilled victim's mother, she confessed about killing her child with the help of her stepfather" said N T Rode, senior police inspector of Bhiwandi city police station.

The police on Friday morning produced convict before Bhiwandi court, where she has been remanded to police custody till September 10.