well to start the best thing is to make the basics clear .. that is the best way . also i suggest that it is gud to take some coaching class .. that way the flow is set .. now onto books ..
for maths try arihnat books ..
for physics HC Verma .. and nothing else is required ..
for chem .. for physcial P Bahadur, and for rest again arihnat books .
i think these are enuff ..
best of luck
cheers