IIM Indore - Indian Institute of Management

It definitely is a plus point if you are from a good college and talk about it in your interview, but not really holds a substantial weight.

I am considering that by campus selection you mean post interview shortlist. For that it depends on how your interview goes, how your scores on different criterias like academic excellence, knowledge level etc. and your score points on written ability tests, graduation marks etc.

Integrated MBA is BBA+MBA. The advantage here lies in that once you've laid a solid groundwork in you graduation; it becomes much easier to select the specialization of your choice. The five year course gives you a solid grounding in the basics of subjects like HR, Finance, MIS, etc and then hones your skills in a specific area, immensely boosting your job prospects.
Equipped with an MBA, you will have a lot more opportunities in the job market. Since you will have a specialization in a certain field, you will be given preference over someone with a just a Bachelor's degree.

Yes, if you are keen for marketing roles, companies would rather focus on your extra curriculars than academics

Yes, it depends on how much weight these colleges give to undergraduate score. If its IIM B,I,S; then they give a lot of weight to undergraduate score, it gets a little difficult in that case.

IPM is one of the holistic courses offered in IIM Indore. Talking about the average package, there is no such actual figure I am aware of which specifically talks about average IPM salary.

90 percentile for general category and 80 for Obc category.
you can check further details here.
http://www.iimidr.ac.in/academic-programmes/post-graduate-program-in-management/pgp-indore-2015-17-batch-admissions-details/

You need to clear CAT exam with high percentile or t get admission in top management school of India .

https://www.shiksha.com/ipm-admissions-2016-commence-at-iim-indore-article-12287-1
It has its own aptitude test. Plz find details of it on website. And cutoffs mentioned in above link.

It all depends on your percentile as to how have you fared with respect to others,anything above 90percentile will gt you shortlisted.