Time management is very much important in IIT JAM. The eduncle test series for IIT JAM Mathematical Statistics helped me a lot in this portion. I am very thankful to the test series I bought from eduncle.
Nilanjan Bhowmick AIR 3, CSIR NET (Earth Science)
Md mobinul
https://www.shiksha.com/science/articles/best-books-for-iit-jam-physics-prep-2021-blogId-23711