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)
Ravi prakash yadav
study simultaneously,choose the topic from syllabus,do questions from study material and if you are finding any difficulty related to concepts,then see HC Verma.