47. A simple analysis of Clause (a) of the above Note reveals that parts which are 'goods' required to be classified in the respective headings; in the present case, 'Antenna' being a part of the BTS, hence applying the said Rule, classifiable under Chapter Heading 8517. Revenue's interpretation of the said clause (a) in the present case is that in the event if the goods are not falling under any of the sub-heading of Heading 8517, then only it will be classifiable as 'parts', is incorrect. Clause (b) of the said Note 2 indicates that "other parts", by implication which are not goods, if suitable for use solely or principally with a particular kind of machine of the same heading are to be classified with the machines of that kind or the headings mentioned under the said clause (b) as appropriate. Further, it is mentioned that parts which are equally suitable for use principally with the goods of Heading 85.17 and Headings of 8517 and 8525 to 8528 are to be classified as Headings of 8517. Therefore, antenna since parts of BTS, as held by Hon'ble Supreme Court in Hutchison Essar South Ltd.'s case (supra), therefore, be classified as "parts" under Tariff Item 8517.7090.