The woman, Jyoti, claimed that the incident took place around 8.15 pm yesterday, they said.
The police said that Jyoti had told them that she had suddenly felt "uneasiness" and had a "weird" feeling, but she did not move.
The woman said that her younger sister came there and saw the some hair lying on the floor and it was then she realised that her braid had been chopped off, they said.