I am a Mechanical engineer, currently I am pursuing M.Tech and give tuition to the students to explore math, science, and physics.

The concept of vishal sir is quite clear and helpful to learn physics in very efficient manner so I think learning from him is the best experience.
Also he is doing his masters from bits pilani (one of the top most universities of India) it means he is very brilliant person in the sense of concepts and logics so I must refer that type of person and suggest to everyone please learn once in your life from vishal sir definitely you will get lots of new concept in physics.