Explanation:

Section 46 and 47 – 
46. Unpaid seller’s rights. (1) Subject to the provisions of this Act and of any law for the for the time being in force, notwithstanding that the property in the goods may have passed to the buyer, the unpaid seller of goods, as such, has by implication of law- (a) a lien on the goods for the period while he is in possession of them, (b) in case of the insolvency of the buyer a right of stopping the goods in transit after he has parted with the possession of them. (c) a right of re-sale as limited by this Act. (2) Where the property in goods has not passed to the buyer, the unpaid seller has, in addition to his other remedies, a right of withholding delivery similar to and co-extensive with his rights of lien and stoppage in transit where the property has passed to the buyer. 
47. Seller’s lien. (1) Subject to the provisions of this Act, 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- (a) where the goods have been sold without any stipulations as to credit. (b) where the goods have been sold on credit, but the term of credit has expired. (c) where the buyer becomes insolvent. (2) The seller may exercise his right of lien notwithstanding that he in possession of the goods as agent or bailee for the buyer.