Lean Startup, as coined by Eric Ries, has been adopted by many organizations from Dropbox, Intuit to US Government, and is taught in Harvard Business School. The idea is first proposed in 2011, but now it has taken the startup world by storm. What is startup? Who can be considered an entrepreneur? What numbers should you look at when you are building something new for the customers? What if you do not even know who your customers are? When traditional business plans don't work, Lean Startup will show you a scientific way to create a successful business. If you are an entrepreneur creating a new business in an extremely uncertain environment, or if you are building a product around a new idea and/or in a new market, Lean Startup is a concept that you will regret not knowing about before. How Lean Startup is relevant in Bangladesh? How is it relevant to tech business? The speaker will try to answers all these questions. And perhaps make you ask more.