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)
>



Mayank Mishra
For structural geology, Haakon Fossen is one of the best books to clear your concepts. SK Ghosh is also good, but i will suggest you to go for TK Biswal Sir's youtube videos on structural geology. I bet you will never doubt and will never forget the numerical approach to this topic after going through those videos. He is a professor from IIT bombay. Happy Learning. Cheers.