Three armed men had looted the shop in Badshahpur and had fled with gold and other items on June 20, a spokesman said here.
The police nabbed the person from Khedli in Rajasthan, he said.
Abhishek alias Abhi, a resident of Mohna village in Faridabad, has confessed to having committed the crime along with two of his accomplices, the spokesman claimed.
Several cases are lodged in Faridabad against the accused, including attempt to murder, robbery and assault, he said.
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