BIG DAY FOR LOOT Flipkart Big Billion Days Sale Technec10 Flipkart's annual Big Billion Days sale will commence on September 20 and go on till September 24 in the country. The smartphone sale will begin from September 21 and Flipkart is offering a variety of budget smartphones in the sale. Brands like Moto, Samsung, Xolo, Swipe, Asus, Micromax,...