Dear Avinash,

First of all a big congrtulations to you on securing such great percentages in all your exams. You are at advantage than other candidate as you have some different brach. In addition to it you have 3 years of work experience. Your scores in 10th and 12th is also reasonably good. You stand a pretty much chances to convert IIM Bangalore if you score in CAT around 99 percentile.(General, if OBC - 95+ and SC/ST - 85+). Because for 3 years of work experience your getting 8 marks directly to eligible for a call of WAT (Written Ability Test) and Personal Interview. Following are the criteria for IIM Bangalore and they are in much detail so please go through it once and prepare like it only.

Step 1 : Section wise CAT Percentile Cutoffs

General - 85 (QA - 75 , DILR - 75 , VA - 80)

OBC - 75 (QA - 65 , DILR - 65 , VA - 70)

SC - 70 (QA - 60 , DILR - 60 , VA - 65)

ST - 65 (QA - 55 , DILR - 55 , VA - 55)

PWD - 60 (QA - 50 , DILR - 50 , VA - 50)

Step 2 : For the first shortlist they also consider 10th, 12th scores, your work ex score, according to following matrix

CAT - 40% (VA- 14, DILR - 16, QA-10)

10th Board - 20%

12th Board - 10%

Bachelors - 20%

Gender Diversity - 2%

Work Experience - 8%

Step 3 : According to above criterial candidates are called for Interview and Written ability Test

Step 4 :Different weigtage given to all the stages

WAT Score - 10%

Personal Interview - 30%

CAT - 25%

10th Board - 10%

12th Board - 5%

Bachelors - 10%

Weighted Work Experience - 10%

Step 5 : The final offeres to the candidates made strictly on the aggreagte score obtained in Step 4 as per all the criteria.

As I have mentioned earlier ,IIM Bangalore follows really a rigourous process. once the CAT is over and if you get a Call for personal interview and Written Ability Test than you stand a really high chance to convert it because they give 30% weightage to Personal interview.

In addition to above criteria, Please be clear with your Goals in future such as Why do you want to do MBA after Master in Geology. They should be interconnected. There should be some specific reason behind choosing Masters too. Be clear with your goals and you have IIT tag, you will easily sail throug if you manage to get required percentile.

Hope I answered your query in detail. If you have any further query you can comment here too. All the best for your future. If you liked my answer you can upvote it.