@UnrewardedG
If I tell you that your ROI is within a year will you go for it or on the other hand if I tell you that it comes out to be around 4 years, will you drop the idea of becoming a Pilot?
Money will be there once you become something, just keep it in mind that you will need half a crore to do what you really want to do, if of course you really want to. Don't just think about money It'll come with time. But there is lot more to it when it comes to being a pilot.
It's around 1.5 on avg not just in Indigo but in any other airline in India as well.(answer to your question)