The accused was intercepted after his arrival from Singapore on Monday.
During his personal search, 1.04 kg of gold -- one piece yellow metal crudely given the shape of chain weighing 749 grams and another piece in shape of open ended circle weighing 299 grams -- was seized, it said.
The value of the gold is Rs 31.25 lakh, the statement by the customs said.
"During the last visit, he had carried the same quantity of gold i.e. 1.04 kg in the same manner and in the same form," it said.
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The total value of the present and the past consignments is Rs 62.5 lakh.
The airlines said it will provide full cooperation to the Indian investigating authorities.
"Singapore Airlines will provide full cooperation to the investigating authorities. We are unable to provide details of the crew member concerned due to confidentiality reasons," Channel News Asia today quoted the company's spokesperson as having said.