In the grounds of detention it was stated, inter alia, that arriving at Calcutta by Thai Airways the detenu opted for the green Channel meant for the passengers not having any dutiable and/or prohibited goods for customs clearance and proceeded towards the exit gate; that he declared that he did not have any gold with him, but on search 7 gold bars weighing 70 tolas valued approximately at Rs.2,71,728 deftly concealed between the inner soles of the left and right sports shoes in specially made cavities were recovered; that in his voluntary statement before the customs officer he admitted the recovery; that he had been able to learn English as he was with some English people during the period of 2nd Ke dardham Expedition or Kedarnath Dham Expedition in the year 1987 and he was also learning English when he was in France in the year 1985; that scrutiny of his passport revealed that he visited Delhi on 6.2.1989 & 21.2.