Whether contracts entered into and executed by the assessee for manufacture, supply, installation, and commission of elevators and lifts were contracts for work or sale-contracts?
In a "contract of sale", the main object is the transfer of property and delivery of possession of the property, whereas the main object in a "contract for work" is not the transfer of the property but it is one for work and labour.
Another test often to be applied to is: when and how the property of the dealer in such a transaction passes to the customer: is it by transfer at the time of delivery of the finished article as a chattel or by accession during the procession of work on fusion to the movable property of the customer? If it is the former, it is a "sale"; if it is the latter, it is a "works- contract".
Therefore, in judging whether the contract is for a "sale" or for "work and labour", the essence of the contract or the reality of the transaction as a whole has to be taken into consideration