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)
Atla vishnu vardhan reddy
ujjawal bayyya pls send the notes for differential equations....
http://hunt4edu.com/ordinary-differential-equation-hand-written-note-by-s-k-rathore/
you can download from this link....and please accept or mark best answer if my answer helps u in anyway