The incident took place yesterday when the boy was playing outside his house in Sector 4 following which two of his neighbours, Rohit and Arun approached him, they said.
The duo managed to take the boy to a nearby park and sodomised him after which they threatened him with dire consequences if he revealed the incident to anyone, police said.
Police has registered a case against the accused after the victim's uncle lodged a complaint and further probe is on.
Meanwhile, Sharda, resident of Chaysa village lodged a complaint with the police that her a 16-year-old daughter was abducted by one Surjit, a resident of Palwal.