Is it possible for me to get into anyone of the IIMs if I have completed my bachelor's degree from a tier 3 college with 85% & have 76% in 10th, 53% in 12th & no work experience?
You have an average Academic record so you need to target a little higher percentile than the closing cut-off.
After CAT result, Every Institute including IIM prepares a merit list to call students for next round of interview and WSAT which is based on your aggregate score which comprises of many factors such as CAT marks,
10th 12th and graduation percentage, work experience etc. with different weightages for different IIMs.
If you are targeting to get top IIMs like IIM A, B, C then try to score more than 99 percentile and for new IIMs try to score 95 percentile in CAT Entrance Exam. Other than IIMs, To get into top private colleges like FMS, JBIMS Mumbai, S.P Jain etc. You should have more than 96-98 percentile other than this for other private colleges you can get with 90+ percentile in CAT Entrance Exam.