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)
Durgesh rawat
eduncle books are enough if you study proper through previous year question paper deep analysis and practice more and more mcqs but you need to focus on every aspect of whole syllabus best of luck for your exam keep practicing