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)
Lekhika
Hi, for electronics I will suggest JB gupta, which is best book to learn all concepts. and for solid state physics by charles kittle . but one book will never be sufficient to learn all concepts thoroughly . so depends on need and demand of topic pls never hesitate to go through from some other book.