What are the root causes in failure of a Start-up?

They're the main indicators of startup failure.

1. You don't know your customers. 
2. You're stuck in a mental trap. 
3. You're oblivious to market forces. 
4. You don't pivot fast enough. 
5. You don't execute fast enough. 
6. You're busy doing the wrong stuff. 
7. You're not focusing on revenue. 
8. You don't know your runaway.

And thats where planning and strategy plays a crucial role, you cannot just jump into a settled market and demand your position. Competition is high and so is the pressure.