One of the largest sellers on Flipkart, WS Retail, has stopped selling its products on the e-commerce major's online platform. This comes after government regulations barred sellers on online marketplaces from contributing over 25% of sales by volume. Interestingly, WS Retail was founded by Flipkart Co-founders Sachin Bansal and Binny Bansal in 2009 to sell products exclusively on the platform.