Hello aspirant,

To answer your first question, Last years cut off for IIM- A was 99% and so was for IIM-B&C so you have to have at least 97-99%tile in CAT scores, there is no specific score which we can tell that you have to score to have such a percentile, you have to keep in mind that this percentile depends on number of students and also highest marks scored.

You general profile looks good and you have a job experience too, but its important to have a certificate of the same to prove it, all this adds to the score while selection in IIM-A/B/C.

You can always use our IIM call predictor to have a better idea, Here is the link for the same.

https://bschool.careers360.com/pathfinder/cat?icn=CAT_clgpd&ici=CAT_question_detail

and to answer your 2nd question I would like to say that you ensure you have a great understanding and knowledge of the current affairs, you can also use your intelligence in finance to start studying about stocks and shares and also you can have a wide idea about what marketing really is and how to solve cases regarding to it.

I hope it helps.