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)
Narayan kapure Kapure
JAM is important exam bcoz it will lead to you IIT and to a great future you can do msc form iit in a very good filed then you can do PhD and so on