A 25-year-old man allegedly molested two sisters, aged six and five, during a birthday party in southwest Delhi's Uttam Nagar on Thursday, police said.
The accused, Deepak who is a rag picker, has been arrested, they said.
The birthday party of the victim's relative was organised outside the house in a tent. The accused, who is the relative's neighbour lured the two minor girls and took them to his shanty where he allegedly touched them "inappropriately" and molested them, police said.
When the relatives did not find the girls, they started looking and found them at Deepak's place, police said.
The mother of the victim later filed a complaint with the police, officials said.