Manish Kumar Singhal AKA MKS sir! Yeah definitely him! Well you sit in his class and you get a lot much interested in physics. And he will be the most respected teacher by you for your entire life. His honesty and sincerity towards his job and worth looking out for. He himself is a CS grad from IITD and an ex-IPS officer.
Believe me you will never forget his teachings of work for your entire life. He is an inspiration for students to work sincerely for their interests and for their goals in life.