Flipkart, Amazon and Bigbasket reported record festive sales of iPhones and premium devices, with fast deliveries and GST reforms boosting growth in metros and Tier-II citiesFlipkart, Amazon and Bigbasket reported record festive sales of iPhones and premium devices, with fast deliveries and GST reforms boosting growth in metros and Tier-II cities Latest News [ SOBAN NEWS: International and National ]