Manoj Sharma hailing from Sikar district arrived in a Dubai-Jaipur flight yesterday.
He was carrying gold biscuits and jewellery in his baggage which was detected during checking. He had not declared that he was travelling with 8 kg gold.
"When questioned, he could not give a satisfactory answer about the gold following which he was taken into custody," sources said today.
Foreign currency was also recovered from him, they said, adding, he will be produced in court.