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
When I started , I didn't understand a thing in group theory. But when you keep reading and relate your question to the theorem you have learnt. It does get better. After revision and some practice , you can solve group theory on fingers.