Why did Gandhi feel he had failed after India gained independence?

He felt guilt

Explanation:

You know guilt is a  very powerful emotion. It can bring someone to ultimate conclusions or simply toy with their heads. Not only is guilt powerful, so is depression. Now I personally don't like the word but it's a word that can be used in that perspective. Depression is bottom level of sadness that takes some wonders to overcome. Though with doing the right thing and accomplishing your goals, it's like the word doesn't even exist. Though failure is another one that is powerful. Now Gandhi (whoever he is) must have felt like a total waste to everything. He must have felt like people were talking behind his back. Which I'm sure they were but Gandhi overthought it I'm sure. :)

answer: (fluidity)is the correct answer.

explanation: because of this characteristic, success on the battlefield depends in large part on the ability to adapt to proactively change events to our advantage as well as to react quickly to constantly changing conditions