Military recruiter (MR) Rahul Khanna was arrested in a raid on his home in the Kutch district of Uttar Pradesh, police said on Saturday.
Police said Khanna, 28, had confessed to recruiting a boy from his home.
He was arrested on Friday in the district of Dera Sacha Sauda.
Khanna had allegedly asked the boy to join the army and he had accepted, police alleged.
He had been living in the house of the family of his son and wife since 2012.
Khana had allegedly used the boy as an informer.
Police have filed a case of sedition and sedition by a person with intent to provoke and cause hurt to the Government of India.