If your metric is **fewest customer complaints + most reliable experience** in India right now, the consensus in 2026 is roughly: 1. Blinkit 2. Swiggy Instamart 3. BigBasket / BB Now 4. Zepto Why this order: - Blinkit currently has the strongest scale, widest dark-store network, and best fulfillment consistency according to multiple 2025–26 market reports and consumer preference surveys. - Swiggy Instamart is generally viewed as slightly slower but more stable in refund
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