Online Resources 

1.  Classical Mechanics

Lecture by N. Mukunda

Lecture by Leonard Susskind 

Lecture by V. Balakrishnan

Lecture by S. Govindarajan

Lecture by T. Osborne

2.  Electrodynamics

Lecture by M. Fabbrichesi

Lecture by Partha S. Majumdar

3.  Mathematical Physics

Lecture by V. Balakrishnan

4.  Quantum Mechanics

QM-1

Lecture by B. Zweibach

Lecture by A. Adams

Lecture by V. Balakrishnan

Lecture by S. Lakshmi Bala

Lecture by A. Ghatak

QM-2

Lecture by B. Zweibach

QM-3

Lecture by B. Zweibach

Path integral QM

Lecture by A. Dasgupta

5. Statistical Mechanics

Lecture by M. Kardar

Lecture by J. Preskill

Lecture by S. Govindarajan

Lecture by A. Joy

6. Non-equilibrium Statistical Mechanics

Lecture by V. Balakrishnan

7. Classical Field theory

Lecture by S. Govindrajan

8. Statistical Field theory

Lecture by M. Kardar

9. Quantum Field theory

QFT-1

Lecture by D. Tong

Lecture by F. Cachazo

Lecture by A. Sen

Lecture by K. Zarembo

Lecture by Hong Lui 

Lecture by T. Padmanabhan

Lecture by S. Raju

QFT-2

Lecture by F. David

Lecture by A. Sen

10. General Relativity

Foundation

Lecture by L. Susskind

Lecture by S. Huges

Lecture by A. Sen 

Lecture by T. Padmanabhan

Advanced 

Lecture by T. Padmanabhan

Lecture by E. Poisson

Lecture by M. Guica 

11. Cosmology

Lecture by L. Susskind

Lecture by B. Ryden

Lecture by A. Guth

12. Nonlinear Dynamics

Lecture by S. Strogatz

Lecture by V. Balakrishnan

13. Fluid Dynamics

Lecture by J. Bhattacharjee

14. Astronomy and Astrophysics

Lecture course from IUCAA

15. Topology, Group theory, Differential geometry

Lecture by S. Mukhi on Topology, Differential Geometry

Lectures by G. Mondal on Topology, Group Theory 

Lecture by N. Mukunda on Group Theory

16. Solid state physics

Lecture by S.H. Simon