According to reports, the girl works as a maid for a family staying in Uzan Bazar area of the city.
The incident came to light only after the victim who fell sick and was admitted to Apollo Hospitals in the city gave birth to a baby.
Last year, the family invited the phony self –styled godman in their house to perform some ritual.
The accused person claimed that their maid is possessed by evil spirits and advised the family to conduct a ritual.
However, as the family made the arrangements in a different room, the phony godman addressed as ‘Babaji’ by some people allegedly raped her and left .
The victim reported the incident to the family only after giving birth to the baby.
The crime was first reported by 181 Women Helpline to Miguel Queah, Support Person (POCSO), Child Welfare Committee, Kamrup (M) and executive director of UTSAH, an NGO working for child rights.
The Child Welfare Committee lodged an FIR with the Satgaon Police under Section 6 of the POSCO Act.
The police then arrested the phony godman who was on the run after the victim gave birth to the baby.
Police will go for DNA profiling to ascertain the truth.
They are investigating the matter further and a number of witnesses will be examined.
The self-styled healer, according to police, comes to Guwahati every Thursday and is a permanent resident of Baksa.