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)
Priyanshu kumar
https://drive.google.com/folderview?id=1FaKkGNXSa7XffyEgRmyw2Zkz7sImXV0C akanksha you can download from it.you can get all these in one go
go here and download all the pdf
sir chem academy ki all pdf mere pas he
previous year questions are almost same in every question bank