The case came into the limelight after the victim tried to immolate herself last Sunday outside UP Chief Minister Yogi Adityanath's residence alleging police inaction against Sengar.
The victim's father died in judicial custody almost a week after he was reportedly thrashed by the MLA's brother and others.
A purported video of the girl's father before his death has also gone viral and was aired by several TV news channels.
In the video, he alleged that he was mercilessly beaten up, including with rifle butts, by the MLA's brother and others in the presence of police.
(This story has not been edited by Business Standard staff and is auto-generated from a syndicated feed.)