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)
Anshum Sharma
These are the properties of definite integral. and these are used in many problems you just have to memorize these properties. 2 and 5 properties are most important, they are used in most of the questions. If you need any help just tell me.