One of the main reasons Indian (or most) startups fail is because they lack a clear and compelling vision.
This can be for a number of reasons, such as the founders not having a strong enough sense of what they want to achieve or not being able to articulate it clearly to others. It leads to the team not having a sense of purpose that is existentialist for a lot of employees. A whole lot of people quit because they don’t have an answer to “What am I doing here?”.
Without a clear articulated direction (aka vision), it's very difficult to get people on board with your idea and to get them excited about it.
The startups that were incubated with the express purpose of solving “a” problem run out of steam once the market makes them realise that this is a limited problem and there isn’t enough yield for the effort / expense. Thats again lack of vision. Every problem doesn’t need to be solved and small canvas startup founders realise that to their peril.
The most common thing I have first hand experience of in India - Some founders are just out of depth after reaching a certain scale - they have no experience in scaling up or execution and are also not eager to ceed control to professionals. A lot of startups flounder at this stage. Thats lack of vision in handing over to professionals when you reach an inflection point. But classic Indian control freak-ery wreaks havoc here.
It's also difficult to make decisions about what direction to take the company in, and you are more likely to make wrong turns that waste time, money, energy and resources. You see umpteen examples of this - people trying to be everything for everyone. PayTM is a classic example - Games, Mall, This, That, what a waste of resources.
Layoffs are an aftereffect of lack of vision. Fail fast is great for 0-1, but beyond that the impact is severe, hurts a lot of people and plays out publicly.