and the Central Excise Rules, 2002 prevalent at present. The appellants have been registered with the Department in terms of both the earlier and the prevalent Rules, namely, Central Excise Rules, 2002. The appellants pointed out that M/s. Merck had obtained loan license as a manufacturer in the premises of the appellants. Besides Hexane and Petroleum Ether, the appellants were also receiving some other chemicals for purification in respect of which there is no dispute. M/s. Merck filed declaration under Rule 173C of the erstwhile Central Excise Rules, 1944 in the capacity of a principal manufacturer in the unit of the appellants. In the said declaration, the details of activity undertaken by the appellants on the duty paid Hexane and Petroleum Ether were furnished to the Department. The Revenue had relied upon the visit which was paid by the Superintendent of Central Excise, Range-IV, Belapur I Division. There was a communication dated 27th February, 2001 issued by the said Superintendent. The appellants point out that the above products were classified under Sub-Heading 27.10 of the Central Excise Tariff. The purified Hexane and Petroleum Benzine 60-80 which were cleared by the appellants after repacking to M/s. Merck were also classified under this chapter of Central Excise Tarrif. The