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)
Dr. sharad agrawal
https://youtu.be/aEEpwqAslRs https://youtu.be/Z_ihPad1YhQ watch the 2 videos. may be helpful