No there is nothing like reservation or someone’s recommendation, rather it is a matter of one’s hard labour that he/she is able to make it at one of the leading institutions of the country, you may follow these tips to succeed –Stay focused on your studies and keep in mind that one must focus on Physics, Chem and Maths, try to fortify these three, take some coaching classes from a reputed place like Akash Inst etc, then to download previous years’ question paper of JEE mains and advanced and practice solving them, try to enhance speed to answer maximum questions in lesser possible time and finally appear in Jee mains – do well – then appear in JEE Advanced – do well again, It would be better if you would mix the subjects that is do Physics for two-three days, then, may be shift to some topic of Chemistry or Math. This would help keeping things not-exhausting.Now, once you have brushed up a topic, solve some random problems from a book specifically on that topic.Now the most important task during all this is to mark the examples or formulae you find difficult to remember and then keep an eye on IITs/NITs counselling rounds and thus institutions are allotted otherwise ther may be second option to visit the official websites of some renowned institutions offering technical studies....to name a few – Quantum School of Tech, Roorkee,.........Krishna Inst of Engg and Tech, Ghaziabad,..........lovely Professional Uni, phagwara,........Mookambika Technical Campus, Ernakulam