Let's try and make this estimate more robust:
As of my knowledge cutoff in September 2021, Razorpay had about 500,000 businesses using their platform. Let's assume modest growth and say that currently, they have around 600,000 businesses.
Razorpay serves a wide variety of businesses, ranging from startups to large enterprises. Let's categorize businesses into three tiers: small businesses (50%), medium businesses (30%), and large businesses (20%).
Next, we estimate the average daily transaction volume for each type of business. These averages can vary widely, but for the purpose of this guesstimate, let's assume $500/day for small businesses, $2000/day for medium businesses, and $5000/day for large businesses.
Using these estimates, we can now calculate the total daily transaction volume processed by Razorpay
