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)
Deepak singh 1
see attached solution ..
similarly you can do next part , if any doubt then ask
if you get rank 4 then its l.i
if rank less than 4 then it is l.d