Aryabhata is considered the father of Indian mathematics. He lived in the 5th century CE and is known for his contributions to arithmetic, algebra, and astronomy.

Bhaskara II, also known as Bhaskaracharya, developed the Fibonacci sequence in the 12th century CE.

Srinivasa Ramanujan was a self-taught mathematician who made significant contributions to number theory and modular forms in the early 20th century.

C. R. Rao is a renowned statistician known for his work on design of experiments and quality control. He has made significant contributions to statistical theory and practice.

The Pythagorean theorem is a fundamental theorem in geometry that states that in a right triangle, the square of the hypotenuse is equal to the sum of the squares of the other two sides.

Aryabhata is credited with developing the concept of zero in the 5th century CE.

The Hardy–Littlewood conjecture states that any positive integer can be expressed as the sum of three prime numbers.

Bhaskara II developed the concept of negative numbers in the 12th century CE.

Brahmagupta's identity states that the product of two consecutive integers is always one less than the square of the larger integer.

Aryabhata developed the concept of the decimal system in the 5th century CE.

The triangle sum theorem states that the sum of the interior angles of a triangle is always 180 degrees.

Aryabhata developed the concept of the sine function in the 5th century CE.

Heron's formula states that the area of a triangle is equal to half the product of its base and height.

Bhaskara II developed the concept of the cosine function in the 12th century CE.

Gauss's formula states that the sum of the squares of the first n natural numbers is equal to n(n+1)(2n+1)/6.