Kolkata: A mentally-challenged woman was allegedly raped while she wasreturning home late on intervening night of Thursday and Friday at Rajarhat. The incident came to light after she fell ill on Friday morning and narrated the incident to her family members. Later, the police arrested the prime accused. According to the police, on Friday morning, a woman arrived at the Rajarhat police station and said her mentally-challenged sister has been raped around 2am on the intervening night of Thursday and Friday. Immediately police personnel went to the victim’s home and interacted with the her in presence of her family members. Also Read – Rs 13,000 crore investment to provide 2 lakh jobs: MamataLater, the police came to know that the victim had been to an event at Arbelia on Thursday evening. She was returning home when Karun Naskar alias Kanai blocked her way at Panchanandatala in Rajarhat. He allegedly dragged her to a bush beside the road and raped her. Then he left for home. On Friday morning victim woman suddenly fell ill and started vomiting and blood was found in her private parts. When victim’s elder sister asked what happened, she told her about the incident. Later, the woman was sent to R G Kar Medical College and Hospital for treatment and medical examination. Police went to Naskar’s home at Jaligachi Naskarpara in Rajarhat and arrested him. Later, the accused confessed to crime. Sources informed that Naskar was a local vegetable vendor. He has been booked under IPC section 376 for raping the woman.