Renowned atomic scientist Pitamber Patel and famous scientist J J Rawal presented the cash award of Rs 20,000 to Kumar.
The annual award is given to a person who has at least three papers published in international journals and is involved in teaching mathematics.
Kumar imparts mentoring to 30 students from underprivileged families for IIT.
Kumar's papers have been published in a number of international journals including Mathematical Spectrum and Mathematical Gazette of the UK.
He was thrice invited jointly by the Mathematical Association of America and the American Mathematical Society to present his papers.
Kumar, who is a native of Bihar is founder of Super30, which imparts free residential mentoring to 30 selected students from underprivileged families for IIT entrance exam and has achieved international recognition for social awarkening.
"I am planning to write mathematic books to project the subject in an interesting way and help students learn the subject easily," Kumar said.