The much-awaited Amazon Great Indian Festival and Flipkart Big Billion Days 2025 are set to begin on September 23, offering massive discounts across categories like smartphones, electronics, fashion, and home appliances. https://www.punjabistoryline.com/technology/amazon-sale-flipkart-sale-great-indian-festival-big-billion-days-diwali-offers-online-shopping-discount-deals-news-23505