Importance of Delivery in Negotiation [Section 46 of the Negotiable Instruments Act, 1881] \nDelivery of an instrument is essential whether the instrument is payable to bearer or order for effecting the negotiation. The delivery must be voluntary, and the object of delivery should be to pass the property in the instrument to the person to whom it is delivered. The delivery can be, actual or constructive. Actual delivery takes place when the instrument changes hand physically. Constructive delivery takes place when the instrument is delivered to the agent, clerk or servant of the indorsee on his behalf or when the indorser, after indorsement, holds the instrument as an agent of the indorsee. \nSection 46 also lays down that when an instrument is conditionally or for a special purpose only, the property in it does not pass to the transferee, even though it is indorsed to him, unless the instrument is negotiated to a holder in due course. \nThe contract on a negotiable instrument until delivery remains incomplete and revocable. \nDelivery is essential not only at the time of negotiation but also at the time of making or drawing of negotiable instrument. The rights in the instrument are not transferred to the indorsee unless after the indorsement the same has been delivered. If a person makes the indorsement of instrument but before the same could be delivered to the indorsee, the indorser dies, the legal representatives of the deceased person cannot negotiate the same by mere delivery thereof. (Section 57). \nIn the instant case, Ankit the only son of Gagan delivered the bill to Akash on the next day as intended by his deceased father (Gagan) which is not valid. \nHence, Akash cannot enforce the payment of the bill against Baban or the previous parties.