Well that's a little exaggerated. There are lots of exams which I could not clear or did not appear for.

Still, I will say that early start helps a lot. I had been active in studies right from my childhood. I used to come first in my class from early childhood(class 2). I used to learn stuff regularly.

I began serious study for competition from class 8. Began studying higher classes stuff, joined Resonance and began studying more. I realised that many people were ahead of me in Udaipur itself. I was a little low at that time. Then I gave Junior Science Olympiad which made me realise my potential. Now I was even more studious. Classes 10,11 and 12 were great. I cleared NTSE,KVPY,Olympiads and JEE.

Strategy was just the usual one:Hardwork and Regularity. I used to complete my homework regularly. I tried to solve tough questions again and again till perfection was reached

PS: You can visit my page for more info. It's in my credentials on my profile. Please share and like it.