Madhava of Sangamagrama is widely regarded as the father of Indian calculus due to his significant contributions to the field in the 14th century.

Madhava of Sangamagrama developed the Madhava series, also known as the Gregory series, to approximate the value of pi.

Nilakantha Somayaji, a 15th-century Indian mathematician, is credited with developing the concept of the derivative.

Jyeshtadeva, an 11th-century Indian mathematician, was the first to use the concept of infinitesimals in calculus.

Srinivasa Ramanujan, a 20th-century Indian mathematician, made significant contributions to the Taylor series.

Srinivasa Ramanujan developed the Ramanujan's modular equation, which relates to the Riemann zeta function.

S. Ramanujan, a 20th-century Indian mathematician, made significant contributions to the study of elliptic functions.

S. Ramanujan developed the Ramanujan's modular equation, which relates to modular forms.

Srinivasa Ramanujan made significant contributions to the theory of numbers.

Srinivasa Ramanujan developed the Ramanujan's prime number theorem, which relates to the distribution of prime numbers.

C. R. Rao, a 20th-century Indian mathematician, made significant contributions to the field of statistics.

C. R. Rao developed the Rao's theorem, which relates to the analysis of variance.

S. N. Bose, a 20th-century Indian mathematician, made significant contributions to probability theory.

S. N. Bose developed the Bose-Einstein distribution, which relates to the distribution of particles in a quantum system.

S. S. Chern, a 20th-century Indian mathematician, made significant contributions to differential geometry.