@nkmr47 Yes if I were to go by what they say - 'We do normalise across boards'
But I really don't think how does this process work. In a country with so much diversity in education patterns its extremely difficult to have normalisation in place for all boards. So I would suggest better not question it or crib about it. As no matter how much crib about it you would never get to know the real process. And this is something one would not know even after coming to a B-School. As there are certain policies which always indoor and never ever revealed to anyone.
And just think is that something which you have to worry about?? The answer is NO! I also cribbed about it when I went through the process but after having gone through I realise there was no point. But yes one thing can be rest assured - No Process will be static. It will be dynamic and ever-changing and will be driven by constant feedback. As these are top quality B-Schools and students are their assets and they would every bit to ensure these assets are highly valued and are selected on fair basis.
So Bottom Line Just Concentrate on what task you have to do - Write Entrance, Prepare for Selection Process, Get Selected and Experience B-School Life!