Sir I am in 10 class and I want to crack mains and advance both.after half year I have ordered my 10 class dlpd and studying it with tutor .COULD u pls tell me that which subjectual concepts I should focus in physics , chemistry and maths.And some tips .I am really a bit confused and also have a lot of queries in my mind.SO PLS ANSWER OR RESPONSE IT!!!!!😇SIR

@ mishal 
as you are in grade 10^th right now , so, no need to worry , u have ample amount of time left for jee prep . prep ideally starts from class 11^th , so, just focus on your board annual exam right now . 
and in 10^th u need just besic concepts , 
just study ncert twice and clearly , that is more than enough . 
u need to focus on gravitation , carbon and its compound , and unit and conversion in chemistry and physics , 
in maths maintain good base in trigonometry , else u will face prob in class 11^th , 

ALL THE BEST ..