their many books in market each person askes you to follow a book bt u have 2 follow the books u r comfertable with here i suggest u some books
	
JEE(main)
	
maths:follow either cengage or arihant series
	
physics:this is the subject that is frigtening students every year in final exam.so first complet all questions of ncert then start solving cengage or arihant their are many if u feel that their are problems in cengage then solve dc panday but complet one of them when it comes to extra sylbus like semiconductors follow ncert only. Cengage got very good example problems dont neglect them
	
chemistry:for mains dont refer any thing more than ncert
	
irrespective of subject solve all pervious advanced and mains questions both online and  offline papers
	
JEE(advanced)
	
maths:if u feel u r strong in maths n want a very good score even if the paper is tough then follow arihant.  otherwice follow cengage
	
physics:whether u belive it or not it is true dat from past 2 years mains paper of physics is being much more tougher than advanced paper. physics is always scoring in advanced so dont neglect . It needs same prepration as mains. just solve cengage properly . HC verma is a very good book but not sufficent it is out dated. u need not refer irodov if u once solve cengage
	
chemistry:physical :cengage(theory) problems avasthi
	
organic:theory jagadhamba singh problems himanshu panday or ms chohuan
	
inorganic:sudarshan guha (JD LEE)
	
solve all previous jee questions
	
PLEASE APROVE