Sunita (34), allegedly a member of a gang involved in human trafficking, was arrested for the abduction, police officials said.
The boy, who lives in slums at Kali Bari, had gone to the city hospital with his mother Jyoti at around 8:30 AM today. Jyoti, who had gone to see a relative's new-born baby, last saw her son playing in the corridors of the hospital after which he went missing, they added.
"The hospital's security guards joined Jyoti in her search for her son but the boy was nowhere to be found. The hospital authorities then informed the police," a police official said.
"However, the footage was not clear enough to reveal the exact appearance of the woman," said the official.
More From This Section
Police then contacted its Special Cell which deals with cases of human trafficking.
Police apprehended Sunita by evening from central Delhi's Jhandewalan area.
During interrogation, the woman revealed that she had lured the child outside the hospital by promising to give him biscuits, police said.