Scaling Hike Messenger to 20M Users` is the story of how an India-based messaging app, `Hike Messenger`, successfully scaled its user base to over 20 million in just 15 months. The company's CTO, Rajat Bansal, attributes their success to using `MongoDB` technology, which allowed them to scale quickly and efficiently. With MongoDB's support, Hike was able to avoid common pitfalls that other startups face, such as being reactive rather than proactive when scaling up. By leveraging MongoDB's platform and support, Hike was able to "scale small, grow big, and grow really fast", according to Bansal. This approach enabled the company to rapidly expand its user base and maintain a strong technology foundation.