The incident seems to have occurred around four months ago when the girl, who was suffered stomach pain went to the hospital of one Narendra, a doctor in Parigi town of Ranga Reddy, the police said.
He advised her parents that she should be admitted to the hospital at night, DSP (Chevella Sub-Division) said.
"The girl was given some tablets. However, after gaining consciousness she realised that Narendra had raped her," the DSP said.
Allegedly, Narendra threatened the girl and her parents not to reveal the matter to anybody.
The girl was married off in June to another person.
However, after she complained of stomach ache, the very next day, doctors told her that she was pregnant, the police officer said.
Later, her parents lodged a complaint with the Parigi police who booked a case of rape under relevant sections of the Indian Penal Code and relevant provisions of the POCSO Act.
A manhunt has been launched to nab Narendra, who is absconding, the police said.