The mystery over the postal parcel containing 23,000 euros (Rs.3.7 million) and addressed to Bollywood glamour girl Aishwarya Rai continues, even as the actor's father Krishnara Rai was Wednesday questioned by sleuths of the Customs department.

Mumbai Commissioner of Customs (Imports) A.K. Prasad said Krishnara Rai had visited the customs office on behalf of his daughter who is out of station.

According to sources, Rai said his daughter was away in Jaipur for a film shoot and would be returning only on Monday.

"He (Krishnara) came in connection with the replies and queries regarding the postal package containing 23,000 euros. He was very cooperative, in fact both he and Aishwarya have been very cooperative. Her gave us satisfactory answers to all our queries," Mumbai Commissioner of Customs A.K. Prasad told reporters here.

Aishwarya, served a notice by the department seeking her clarification regarding the packaging of the parcel, is in Jaipur for a film shoot.

Prasad, however, did not divulge any details of the questioning.

The packet, containing foreign currency was addressed to Aishwarya's new residence "La Mer" on the Bandra Sea face in north suburban Mumbai.

Prasad said the package, which also contained the cash, was sent from Rotterdam in the Netherlands, with an attached declaration saying it had a branded shirt, a pair of binoculars, a DVD player and other electronic goods.

The customs officials have also declined to disclose the consignee's name.