NEW DELHI : Indian consumer products distributors have filed an antitrust case against big fast-delivery businesses of Zomato, Swiggy and Zepto, calling for an investigation into alleged deep discounting practices, legal papers show. India's e-commerce sector has faced intense scrutiny over how products are priced online. An antitrust investigation last year found Amazon and Walmart's Flipkart favour select sellers and resorted to "predatory pricing", which hurts smaller retailers. The