Aryabhata, an ancient Indian mathematician and astronomer, is credited with the development of the decimal system and the concept of zero.

The Sulba Sutras are a collection of ancient Indian texts that contain mathematical knowledge, including rules for arithmetic, geometry, and algebra.

Pingala, an ancient Indian mathematician, is known for his work on the Fibonacci sequence and the development of the Pascal's triangle.

Brahmagupta, an ancient Indian mathematician, is credited with the development of the concept of negative numbers and the use of symbols to represent mathematical operations.

Madhava of Sangamagrama, an ancient Indian mathematician, is known for his contributions to the field of trigonometry, including the development of the sine and cosine functions.

Srinivasa Ramanujan, a modern Indian mathematician, is known for his contributions to the field of mathematics, including the development of the concept of the calculus and the use of infinite series.

G. H. Hardy, a British mathematician, is known for his work on the theory of numbers and the development of modular arithmetic, in collaboration with Srinivasa Ramanujan.

C. R. Rao, an Indian mathematician and statistician, is known for his contributions to the field of statistics, including the development of the concept of the normal distribution and the central limit theorem.

John Nash, an American mathematician, is known for his work on game theory and the development of the Nash equilibrium, in collaboration with Indian mathematician R. P. Parameswaran.

Narendra Karmarkar, an Indian mathematician, is known for his contributions to the field of computer science, including the development of the concept of the fast Fourier transform (FFT) and the discrete cosine transform (DCT).

Narendra Karmarkar, an Indian mathematician, is known for his work on algorithms and the development of the Karmarkar's algorithm for linear programming.

Srinivasa Ramanujan, an Indian mathematician, is known for his contributions to the field of mathematics, including the development of the concept of the zeta function and the Riemann hypothesis.

Albert Einstein, a German-born physicist, is known for his work on the theory of relativity and the development of the general theory of relativity, in collaboration with Indian mathematician Satyendra Nath Bose.

Subrahmanyan Chandrasekhar, an Indian-American astrophysicist, is known for his contributions to the field of astrophysics, including the development of the concept of the black hole and the theory of black hole thermodynamics.

Ashoke Sen, an Indian physicist, is known for his contributions to the field of theoretical physics, including the development of the AdS/CFT correspondence.