Under the Sale of Goods Act, 1930, lien is not lost merely because seller:

Section 49(2) provides that the unpaid seller "does not lose his lien by reason only that he has obtained a decree for the price of the goods". He does lose it under section 49(1) by delivering the goods to a carrier for the buyer without reserving the right of disposal, when the buyer lawfully obtains possession, or by waiver.