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)
Prashant kumar
Yess ofcourse this good book for concept and practice for Topics like LDE, PDE , Laplace transform etc topics Actually This book cover almost every topics related to JAM and Physical Science NET exam. but my suggestion is "Jain and Iyengar" Mathematics book. please try this book you will find better concepts than HK dass.