Masters in Geology/Earth Sciences from a Central University with a vast subject knowledge and teaching experience

He has a concrete conceptualized approach and can easily convey his knowledge. Numerical as well as theoretical part would be made lucid to the student for sure!

He has the art of teaching by explaining things through live examples.
He is easy to talk to, and he craves to learn while teaching.
He listens to the queries patiently and answers each of them by himself going through them in details.
I would rate him as one of the best in the field right now.