HI ADITYA
IIT JEE EXAM IS BASED ON SYLLABUS OF CLASS 11 AND 12.YOUR BASE MUST BE VERY VERY STRONG TO CLEAR THE EXAM
SO YOU MUST HAVE TO DO A LOT OF HARD WORK. BUT WE PREFER SMART WORK OVER HARD WORK
START FROM NOW ONWARDS AND IF YOU GIVE 1 HOUR TO EACH SUBJECT i.e. PHYSICS, CHEMISTRY AND MATHEMATICS ONLY YOU WILL BE ABLE TO CLEAR THE EXAM.
FOLLOWING A PROPER TIME TABLE IS MUST
MOREOVER IT IS VERY ESSENTIAL TO COVER THE SYLLABUS BY TIME . THIS IS THE MOSR IMPORTANT THING YOU SHOULD REMEMBER
THANKS
PLEASE POST IF YOU HAVE STILL SOME DOUBT
WITH BEST WISHES FOR FUTURE
SAHIL
						

							
@ aditya 
just analyse your mistake while taking the test , and practice regularly , 
u have ample amount of time now to study ad get a good  rank in iitjee . 
and from now just start from the besic and strong that if that is not , so, that u can balance both board and jee prep in class12th . 
and remember – understand every chapter conceptwise , donot try to rott any of them , they will going to harm you in jee . 
ad about the pattern , its not yet constant , there will be changes which is all set to employed in 2017 . just keep update with the jee main and advancxed website for the latest update . 
ALL THE BEST ..