DEAR mam
i appreciate your son’d dedication towards iit , but donot give him much pressure for iitjee ,
now just he needs to clear the besic concepts with ncert and nothing much . only 2 hour per day , for iitjee level ques .
in summer vacation , join any6 summer course for overall development .
and also , s.chand book is good , for maths , for science take out s.chand for physics , for chemistry , dinesh publication .
and alongwith that give him mtg junior magazines , they are quite helpfull for preparation .
make sure he read every chap of ncert twice .
ALL THE BEST
REGARDS