(a)Where arms or ammunition imported into, or acquired in India are to be despatched to Nepal for the Government of Nepal, or His Majesty the King of Nepal, they shall be accompanied by a certificate from the Collector of Customs or the licensing authority of the area concerned to that effect; the certificate shall also contain a description of the marks on each package or case sufficient to enable it to be readily identified and a general statement of the contents of such package or case;