What should be my percentile in cat if I have above 90% in both 10 and 12 but low score in grad(about 65%) to get a call from iim a,b,c ?

Try improving your graduation score as it matters a lot. Try to keep more than 75% in your graduation. In that case you would need a CAT score of 99+ to get a call. All the best.

Hey

For getting calls  from any IIMs you must target achieving 90 percentile . As you have a good  academic track that's a plus point for you and would help you in PIs . However your Cat score matters the most in the selection process you must target in achieving a good score

You seems to have a good academic records and as you are in second year so you also have enough time to improve your graduation percentage. All these things matter for getting an admission in any top reputated colleges like IIMs because after you will give CAT exam every college prepare a merit list to call students for interview round. That merit list is based on the aggregate scores of individual students which is made on the basis of many factors such as CAT marks, 10th 12th and graduation percentage, work experience, engineer or non engineer, gender with different weightages for different colleges.



Then with this merit list students are called for interview and WSAT round. After this again a final list this time including interview and WSAT marks which generally has highest weightage in final list. On the basis of final list students are offered admission.



Now as you are looking for call from IIM A, B, C from the last few years trends you need to score atleast above 99.67 percentile in order to get a call from these colleges. Even after scoring above 99.67 percentile there is no surity of getting a call because in IIM A you need to cross a min. score that is set on the marks gained by all parameters except CAT marks. If you cross this min. Score then only you will be eligible for further evaluation irrespective of your CAT percentile. In case of IIM B it gives way more weightage to work experience and an excellent performance in academics like scoring above 95 percentage in all three 10th 12th and graduation.



One of my friend didn't got a call from IIM A and B even after scoring 99.83 percentile in CAT 2015 because of being a fresher and poor academic records.



You have good academic records in 10th and 12th. Also you have enough time to improve your graduation percentage. So start working on it along with the preparations for CAT exam. As I said earlier to get a call for interview from IIM A, B and C you need to aim for a very high percentile.



All the best for your preparations!!