How did ID fresh get to approx ₹500 crore in revenue?

ID is India’s batter king with ~₹500 crore in revenue and a valuation of ~₹3,000 crore. Consumers make roughly 20 lakh Idlis & 14 lakh dosas in a single day using this batter. First thing - a batter with 0 chemicals & preservatives built a lot of trust. Second was their offline approach putting them in 40,000 stores across India.