hi,

see nothing can be achieved with out doing the hard work, since jee advance is one of the most challenging exams for admission in iits, the questions levels are much tougher than any other engineering entrance test or jee main exam. now coming to the preparation steps, your basic knowledge of physics, mathematics and chemistry should be very clear also must have practice the previous years papers and other study materials. now see if your IQ level is excellent , jee advance can be cracked in 6 months preparation, but you must have practice a lot of questions of advance exam levels.