In her FIR, the woman claimed that a junior doctor raped her between August 31 and September 2.
The doctor, who has been identified by police, is attached to Apollo Hospital, located at Bhat area, where the alleged incident took place.
"The woman said in her FIR that a doctor who was treating her for dengue at Apollo Hospital raped her somewhere during three days before September 3. The matter is being investigated and no arrests have been made in this regard so far," Adalaj police said.
Apollo Hospital said in a statement that they were fully cooperating with the police in investigation.
"The ward where the incident took place has 14 staff members working round the clock, and is equipped with CCTV cameras. We are co-operating fully with the police which are examining CCTV footages and carrying out investigation," Apollo Hospital PRO, Ankit Hingu said.