481, Puma Ayurvedic Herbal (2006) 3 SCC 266, Ishaan Research Lab (P) Ltd. (2008) 13 SCC 349 and CCE v. Uni Products India Ltd. (2009) 9 SCC 295] 37. A commodity cannot be classified in a residuary entry, in the presence of a specific entry, even if such specific entry requires the product to be understood in the technical sense