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)
Piyush pachauri
In IISc and IIser , you will get integrated PhD. In IITs you go for MSc. And for pass percentage, I can tell you about IITs , There is no such thing , It all depends on the professor. He can pass you even at 20% and Relative grading is applicable in IITs.