Aryabhata, a brilliant mathematician from the 5th century CE, is credited with introducing the concept of zero and the decimal system, which revolutionized mathematical calculations.

Brahmagupta, a prominent mathematician of the 7th century CE, is known for his work on algebra, including the formulation and solution of the quadratic equation.

Panini, a renowned linguist of ancient India, is revered for his groundbreaking work, the 'Ashtadhyayi', which provides a systematic analysis of Sanskrit grammar and phonology.

Pingala, an ancient Indian mathematician, is credited with the discovery of the 'Fibonacci sequence' and its applications in prosody and combinatorics.

Bhaskara II, a renowned mathematician of the 12th century CE, made significant advancements in trigonometry, including the development of sine and cosine functions and the formulation of trigonometric identities.

Madhava of Sangamagrama, a brilliant mathematician of the 14th century CE, discovered the concept of 'pi' and developed an approximation method for its calculation.

Robert Caldwell, a British missionary and linguist, made significant contributions to the study of Dravidian languages and comparative linguistics, particularly in South India.

Madhava of Sangamagrama, a pioneering mathematician of the 14th century CE, made remarkable contributions to calculus, including the development of the Taylor series and the concept of infinite series.

Srinivasa Ramanujan, a self-taught mathematical genius of the 20th century, made groundbreaking contributions to number theory, including his work on continued fractions and modular forms.

Suniti Kumar Chatterji, a renowned Indian linguist, made significant contributions to the study of Indo-Aryan languages and historical linguistics, particularly in the context of the development of Indian languages.

C. P. Ramanujam, a prominent Indian mathematician of the 20th century, made significant contributions to algebraic geometry and the theory of schemes, which are fundamental concepts in modern mathematics.

Bhadriraju Krishnamurti, a renowned Indian linguist, made significant contributions to the study of Austroasiatic languages and tribal languages in India, particularly in the context of language documentation and preservation.

Shing-Tung Yau, a Chinese-American mathematician of Indian origin, made significant contributions to differential geometry and the theory of submanifolds, particularly in the context of Calabi-Yau manifolds.

George van Driem, a Dutch linguist and Tibetologist, made significant contributions to the study of Tibeto-Burman languages and Himalayan languages, particularly in the context of historical linguistics and language documentation.

Manjul Bhargava, an Indian-American mathematician, made significant contributions to number theory and the theory of modular forms, particularly in the context of the Birch and Swinnerton-Dyer conjecture.