Who is the person who has had a tremendous impact on you as a leader?

My project manager.

First and foremost, Prophet Mohammad (PBUH), there can't be any better inspirational leader than him.

Later, there are several people in my life, such as,

1. Gandhi,

2. My college principal who was such a honest, inspirational, equipped with moral values, and well respected leader

3. My senior director in my current company from whom I learnt a lot.