Out of the children rescued between June 1 and June 30, 280 have been reunited with their families and the remaining 51 who are unregistered have been admitted in child rehabilitation centres, a release from the state police headquarters here said.
Information is being gathered about the families of unregistered children who have been found, it said.
One hundred and forty seven of the recovered children are from outside Uttarakhand including from Bihar, Delhi, Nepal, Himachal Pradesh, Punjab, Haryana, Rajasthan, Jharkhand, Chattisgarh, Assam and West Bengal, it said.