This document provides instructions on how sellers can opt into and out of listing discounts on Flipkart. It explains that listing discounts offer a set discount on all products in a specific listing. Sellers can view discount calculations and opt into promotions from the Promotions tab. The discount is then applied automatically to eligible products in the listing. Sellers benefit from a portion of the discount amount while the remainder is shared by Flipkart. Details of eligible products and discounts are provided to sellers in a downloadable CSV file for each promotion.