Class notes and assignments (IISER Kolkata: 2019-2024) by Satvik Saha
Link to the website
Class-notes by Swaraj (19MS-IISER Kolkata) for first years Link to his website
First year notes and second year E-C-B notes
For Mathematical Analysis (1st and (mainly) 2nd year)
Mathematics Assignments (MA2201,MA2202) by Aakash Ghosh
Another Awesome Page by Aakash Ghosh (19MS129) beneficial for Maths related stuffs!
My Second Year Research Project on Cosmology (Draft-Report)