Police have also arrested three persons Rambir, Sonu and Naveen Goyal in this connection yesterday.
Six children were working as labourer in shoes factory, while four girls were rescued from a paper plate factory. One child was rescued from a sweet shop, police said.
"A child labour rescue operation was conducted yesterday in Nangloi area under the supervision of SDM, Punjabi Bagh with collaboration of Labour Department and Bachpan Bachao Aandolan (NGO).
"During the rescue operation 11 children from Uttar Pradesh and Bihar working as labourers were rescued from various premises," said Deputy Commissioner of Police (West) Ranvir Singh.
The rescued children were produced before Child Welfare Committee, which sent them in the state protection.
A case against the accused under Child and Labour Act and Juvenile Justice Act has been registered.