Bhaskara II, who lived in the 12th century, is credited with developing many important concepts in topology, including the idea of a continuous function and the concept of a topological space.

Narayana Pandit, who lived in the 14th century, introduced the concept of the fundamental group, which is a fundamental tool in algebraic topology.

Colin Maclaurin, who was born in Scotland but spent most of his life in India, developed the theory of knots in the 18th century.

S.S. Shrikhande, who lived in the 20th century, made significant contributions to the study of homology theory, which is a branch of algebraic topology that deals with the study of topological spaces.

C.T.C. Wall, who lived in the 20th century, is known for his work on the topology of manifolds, which are geometric objects that are locally Euclidean.

V.K. Patodi, who lived in the 20th century, made significant contributions to the study of knot theory, which is a branch of topology that deals with the study of knots.

S.K. Donaldson, who lived in the 20th century, is known for his work on the topology of 3-manifolds, which are 3-dimensional topological spaces.

M.S. Raghunathan, who lived in the 20th century, made significant contributions to the study of algebraic topology, which is a branch of mathematics that deals with the study of topological spaces.

R.C. Kirby, who lived in the 20th century, is known for his work on the topology of 4-manifolds, which are 4-dimensional topological spaces.

S.P. Novikov, who lived in the 20th century, made significant contributions to the study of geometric topology, which is a branch of mathematics that deals with the study of topological spaces.

V.V. Prasolov, who lived in the 20th century, is known for his work on the topology of knots, which is a branch of topology that deals with the study of knots.

Michael Freedman, who lived in the 20th century, made significant contributions to the study of low-dimensional topology, which is a branch of mathematics that deals with the study of topological spaces of dimension 3 or less.

William Thurston, who lived in the 20th century, is known for his work on the topology of 3-manifolds, which are 3-dimensional topological spaces.

Louis Kauffman, who lived in the 20th century, made significant contributions to the study of knot theory, which is a branch of topology that deals with the study of knots.

Peter Kronheimer, who lived in the 20th century, is known for his work on the topology of 4-manifolds, which are 4-dimensional topological spaces.