Dear aspirant,

Generally the system of admission in iim is not very complex and all of the top iims like ahemdabad, Calcutta, Lucknow,Indore, Bangalore follows the method of admission for the candidates.

They would give call to the candidates on the basis of cat scores and during the interview round there is different weightage for different sections like interview round , cat score ,your 10th and 12th score.

So, your percentage in your boards matters because you will be awarded points on the basis of that. Like for 85% and above you will be given 10 points . For 80% -85% you will be given 8 points and this goes beyond.