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)
Ravi bhushan
If coordinate system is in the syllabus then you should study either it is tough or easy. Try to understand the concept of this topic. Practice more and more.