Kartik agreed to sell his laptop to Vasant for a price to be fixed by Kusum a hardware engineer. However, before the delivery of the laptop, Kartik…

Kartik agreed to sell his laptop to Vasant for a price to be fixed by Kusum a hardware engineer. However, before the delivery of the laptop, Kartik changed his mind and did not share any particulars and configuration of the laptop with Kusum, which made her unable to do the valuation. Kusum refused to do valuation. Vasant needed laptop for his project, so he promised Kartik that, if the laptop is delivered to him, he would pay a reasonable price for it. However, Kartik decided not to sell his laptop to Vasant. Now, Vasant wants to know from you, being a legal expert, whether Kartik is bound by his promise as he agreed earlier to deliver his laptop to him at a reasonable price. If he does not agree to deliver what is the other remedy available to Vasant? Advise, referring to the provisions of the Sale of Goods Act, 1930.