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)
Rucha rajesh shingvekar
https://www.jagranjosh.com/articles/ugc-net-logical-and-mathematical-reasoning-questions-with-answers-1560858567-1 some more questions