What is "bohni"

Bohni ( Hindustani: बोहनी or بوﮨنی) is a social and commercial custom of North India and Pakistan that is based on the belief that the first sale of a day (or other selling period) establishes the seller's luck for subsequent transactions during the remainder of the day. In practical terms this means that sellers try to ensure that the first (or bohni) sale happens on a cash-only basis, and ideally without any discounts (i.e. at full-price), though the social protocol associated with bohni sales varies by region. Unless the price is egregious, it is considered good manners for customers to be generous if they are engaged in a bohni transaction with the seller. If the buyer is trusted, the seller will sometimes allow the buyer to state a price that is binding on both, with the expectation that the buyer will demonstrate generosity.