A 17-year-old boy was arrested for allegedly sexually assaulting a four-year-old girl inside a BJP branch office in Behala area of Kolkata on Friday, a police official said.
Police said the accused is the son of the owner of a shop located next to the BJP office. The keys to the office were kept at the shop, TV news channel NDTV reported.
The incident took place between 3pm and 4pm in a small room of the party office on Friday, a senior police official of southwest division of the Kolkata Police under which Behala falls.
The youth was arrested on the basis of a police complaint made by the parents of the girl.
Both the accused and the victim used to stay in the upper floor of the building that houses the party office, the official said.
Asked to react over the incident, BJP spokesperson Ritesh Tewari said: "We condemn the incident. The guilty must be punished."
The four-year-old was admitted to a hospital for medical tests and treatment. Doctors at the hospital confirmed bleeding, according to the NDTV report.