Flipkart Big Billion Days & Amazon Great Indian Festival Days Sale Date Announced: Check Details Here

By Shikhar Mehrotra • Updated On Sep 4, 2025

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TL; DR

Like all other sale events, Flipkart Plus and Black members, as well as Amazon Prime members, will gain early access to the sale, starting at 12:00 AM on September 22, 2025.
Initially, we heard that the sale could begin in the week of September 15.
However, it appears that the revised GST rates (and the corresponding effective dates) have had an impact on the annual sales events.

After a plethora of rumors and leaks, e-commerce giants Amazon and Flipkart have revealed the dates for their biggest annual sales, known as the Great Indian Festival and the Big Billion Days 2025. Guess what, both platforms are commencing with the sale on the same day, and paid subscribers will get a 24-hour early access.

Also Read: Exclusive: OPPO Set to Launch Find X9 Series Globally on October 28th

Big Billion Days & Great Indian Festival Dates Are Out

The Flipkart Big Billion Days 2025 sale will begin on September 23, 2025.
Meanwhile, the Amazon Great Indian Festival 2025 sale will also start on September 23, 2025.

Like all the other sale events, Flipkart Plus/Black and Amazon Prime members will gain early access to the sale, beginning from 12:00 AM on September 22, 2025.

Also Read: vivo X300 Series Camera Specs Confirmed Officially: Massive Telephoto Upgrades & Better Selfies

Why Have The E-Commerce Platforms Delayed The Sale?

Initially, we heard that the sale could begin in the week of September 15. However, it appears that the revised GST rates (and the corresponding effective dates) have had an impact on the annual sales events.

As you may already be aware, the revised GST rates take effect on September 22, 2025. Therefore, most items on sale on September 23, 2025, will already be taxed at the new, lower GST rates. If the sale began before September 22, 2025, the pre-reform rates with higher GST would have applied.

This also means that the discounts shoppers will see during the sales will largely include the tax benefit. Either way, consumers should also benefit from the revised GST rates if retailers decide to pass on the entire GST reduction (and the corresponding margin) to them.

Also Read: realme P4 5G vs. realme 15T vs. realme 15 Pro: Which Is The Right Mid-Ranger For You

Check out our related coverage to remain on top of the deals and discounts you can expect from the Big Billion Days and Great Indian Festival 2025 sale.

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Shikhar Mehrotra

Shikhar Mehrotra is a seasoned technology writer and reviewer with over five years of experience covering consumer tech across India and global markets. At Smartprix, he has authored more than 1,700 articles, including news stories, features, comparisons, and product reviews spanning automobiles, smartphones, chipsets, wearables, laptops, home appliances, and operating systems. Shikhar has reviewed flagship devices such as the iPhone 16, Galaxy S25+, and Sennheiser HD 505 Open-Ear headphones. He also contributes regularly to Smartprix’s growing automotive section.

With a deep understanding of both iOS and Android ecosystems, Shikhar specializes in daily tech news, how-to explainers, product comparisons, and in-depth reviews. His DSLR photography in product reviews is recognized as among the best on the team.

Before joining Smartprix, Shikhar wrote for leading publications including Forbes Advisor India, Republic World, and ScreenRant. He holds a Bachelor of Arts in Journalism and Mass Communication from Amity University, Lucknow.

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