The 27-year-old civil services aspirant, Asif Saifi, has demanded a ransom of Rs. 20 lakh from the family of the child.
Saifi, claimed to have kidnapped the boy to repay his student loan.
After receiving specific leads police arrested the accused Saifi, from near his house in Gautam Budh Nagar's Dadri on Tuesday.
The kidnapper never used his mobile phone and always borrowed it from passers-by on the pretext of an emergency to make ransom calls and kept changing his location.
A case has been registered under relevant Section 363 IPC and the investigation is underway.
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