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)
Jeevesh magnani
for any competitive exam, there are two perspective: 1. clearance in concept 2. good command on problem solving for problem solving institute notes are good, but at times questions are in exams are conceptual based and such type are very scoring. so YES, one must read standard books atleast once. also, unless on has not understood the concept properly, there problem solving sometimes becomes difficult. so again books are needed.