Different courses on different subjects of maths along with the materials and even my own notes can be found here. Each areas are further divided into 3 categories.
A] Introduction level- UG level (basic terminologies and concepts)
B] Intermediary level- Graduate level (advanced concepts, theorem and proof, proof oriented and more towards pure maths)
C] Advanced level- Research papers and new results (includes application and derived results in other subjects like physics, computer science, economics etc) Broad areas include*:
Real Analysis [RA-101A]
Number Theory [NT-101A]
Abstract Algebra [AA-101A]
Linear Algebra [LA-101A]
Probability Theory [PT-102B]
Topology Theory [TOPOTH-101A]
Algebraic Topology [ALTO-102B]
Algebraic Geometry [ALGE-102B]
*I will continuously update as I venture into different caves.