Rasil Mahboob (18), Mohd Saleem (21) and Mohd Muftafa (23) were apprehended from Nizamuddin area yesterday, they said.
The trio were allegedly involved in the robbery in a house in Lajpat Nagar on July 8. They allegedly looted Rs 29,500 cash among other articles.
One Mohd Azhar is still absconding.