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)
Sanjay 1
https://youtu.be/katHIw8Amho this is the link for video to understand the topic of hook's law and below hook's law based notes u can see also this notes .. https://drive.google.com/file/d/1sssaE30SrjLmEEWj47VaacQ0JpNKHcJq/view?usp=drivesdk