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)
Arzoo
Keep practicing the questions given in your study material. And do previous years of IIT Jam religiously. This will give you idea about the types of questions they usually ask.