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)
Priyanshu kumar
https://youtu.be/J4OL7ZxhqhY part 1 https://youtu.be/xwjBjNQ6Swk part 2 Basic mathematical concepts for iit jam
did you check this video?