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)
Dhairya sharma
And i think syllabus should not different from JAM exam
if u covered syllabus of Jam that would be enough in all sense so don't worry go with IiT jam syllabus