IIM Ahmedabad - Indian Institute of Management

That is not true. However if you graduation percentage in engineering is 78 or 75, you are seriously disadvantaged and would need to do really well in CAT to compensate for that.

Fees of IIM is same irrespective of which major you choose. Also first year course curriculum is same for all and it is only in second year that you can choose HRM subjects. Having said that the fee of different IIMs are different. Fee of IIMA is around Rs.18 Lakhs for two years for IIMB it is close to Rs.20 Lakhs.

No, It will not create any difficulty in any way. The only requirement for selection in IIM is that you should have completed your graduation with 60% marks. As long as you meet this criteria and get sufficient CAT percentile, you should be good.

There is no fixed answer to this. However you are seriously disadvantaged in terms of your percentages. To make up for that you will have to score really well in CAT. In my personal experience you will need at least 99.7 - 99.8 percentile overall. However the criteria to compute composite score changes every year and also the scoring depends on the incoming batch. But in general with 99.7-99.8 percentile you should get more than one call from IIMs.

You need to check this with the concerned college department.

Your academic performance looks impressive and in my opinion you should get a GD/PI call from IIMA if you secure more than 99 percentile.

I am not sure as you would be borderline case for all IIMs and other top colleges. And also as soon as results are out, shortlists are announced. Hence you should not worry about the interview calls. I would suggest you to focus on the CAT and do your best.

It should totally depend on you. IIMs or any other business school do not impose a condition on type of course. The only requirement is that you should have completed your bachelor's degree with minimum 60% marks.

You can take admission in any graduation degree of your choice to appear for CAT, XAT or MAT etc. to do MBA or PGDM.