Inspired by Bruce Lee, Rajkumar entered the field of martial arts. He worked hard and won the President's Award. He has been in this field for the past 40 years.

Rajkumar Menaria is the Director of the Sensei Raj Academy of Self-Defense and Fitness.

Rajkumar believes that martial arts are scientific and spiritual arts.

Recalling his childhood, Rajkumar says his parents wanted him to become a doctor, so they always inspired him to study hard. However, due to financial conditions, he had to drop out of school after primary school. Once, he saw the movie "Enter the Dragon," which inspired him to learn martial arts. He started learning by himself. He also participated in a black belt non-contact championship, where he was disqualified. However, after 13 years of learning, he won a Black Belt from Japan in 1990. He also received a President's award from Ramaswamy Venkataraman.

Later, Rajkumar started teaching martial arts. He says it was a struggle initially, because he needed to know how to learn in order to make others learn. He did a lot of practice and successfully trained people in the field of martial arts.

Rajkumar believes that self defense is a state of mind not a skill to learn.