National Mathematics Day: 5 Indian rockstar mathematicians apart from S Ramanujan

While correctly calculating the exact number of days in a year (365) and discovering the correct position of the planets, he also stated that these planets revolved around the sun. The genius, who was born in 476 BC, is credited for the place value system.

This 598 CE born astronomer and author of works on mathematics and astronomy is the first known person in the world to give rules to compute with zero. Which basically means, he gave us the zero.

The Indian statistician great and founder of Indian Statistical Institute has many distinctions to his credit but the man who designed large scale sample surveys actually has a statistical measure named after him --Mahalanobis Distance.

He might have been a recreational mathematician with no formal training in the field, but this Maharashtra native is known for describing several classes of natural numbers including the Kaprekar, Harshad and Self numbers. He discovered the Kaprekar constant which was named after him.

While she may not have 'contributed' in terms of zeros or theories, Shakuntla has for long been recognised as a math genius in India. The Guinness Book of World Records holder has written several textbooks on Maths and also, has written the first study on homosexuality in India. The human calculator, as she was fondly called, could give the 23rd root of a 201-digit number in a mind-boggling 50 seconds.