India, July 29 -- Four police personnel, including a woman sub-inspector, and one civilian have been arrested for allegedly abducting and extorting Rs.20 lakh from a businessman in west Delhi's Paschim Vihar last week, police said on Monday. A departmental inquiry has also been initiated against the accused officers.

According to the FIR, Neeraj Kumar Singh - director of an education consultancy and a car rental firm in Paschim Vihar - was in his office along with two employees on the morning of July 25 when three men barged in. One was in police uniform and identified himself as constable Vishal Chiller; the other two were in plainclothes and wore masks.

"They entered without any warrant or legal documentation, claiming to be acting on...