Can an unpaid seller who has possession of goods exercise the Right of lien? If yes, mention such circumstances. When does he lose his right of line as per the provisions of the Sale of Goods Act, 1930?

Seller’s lien (Section 47 of the Sale of Goods Act, 1930): According to sub-section (1), the unpaid seller of goods who is in possession of them is entitled to retain possession of them until payment or tender of the price in the following cases, namely:-\n(a) where the goods have been sold without any stipulation as to credit; \n(b) where the goods have been sold on credit, but the term of credit has expired; \n(c) where the buyer becomes insolvent. \nAccording to sub-section (2), the seller may exercise his right of lien notwithstanding that he in possession of the goods as agent or bailee for the buyer. \nAs per the provisions of Section 48, where an unpaid seller has made part delivery of the goods, he may exercise his right of lien on the remainder, unless such part delivery has been made under such circumstances as to show an agreement to waive the lien. \nTermination of lien (Section 49): According to sub-section (1), the unpaid seller of goods loses his lien thereon-\n(a) when he delivers the goods to a carrier or other bailee for the purpose of transmission to the buyer without reserving the right of disposal of the goods; \n(b) when the buyer or his agent lawfully obtains possession of the goods; \n(c) by waiver thereof. \nThe unpaid seller of goods, having a lien thereon, does not lose his lien by reason only that he has obtained a decree for the price of the goods. [Sub-section (2)]