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)
Amol ashok pawar
Start with carbon and its properties. The go general nucleophiles and electrophiles. After that I would suggest start with substitution nucleophilic reactions. ( it's easy). Study carbocation THEN go for carbanion, aldol condensation etc. Start doing one name reaction each day with related examples This way it is much easier. Hope this will help