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)
Suman Kumar
https://b-ok.asia/dl/3483634/665b6f?dsource=recommend
Net question paper from career endeavour
this I have dowloaded