As with all other e-commerce websites, in Flipkart, ratings and reviews play an integral role in helping a customer buy a product with confidence.In Flipkart, we have millions of products and hundreds of millions of product reviews. We also have millions of customers shopping the product and writing and reading reviews not only in English but also in various other vernacular languages such as Hindi, Tamil, Marathi etc. This blog captures the key architecture of the Ratings & Reviews system and a...