Sales & Marketing

All of them are equally rewarding in terms of future scope, though marketing and HR are more popular as specializations. Whereas, IBM is more focused towards understanding the global business scenario / trends and related stuff. Kindly, visit the link for more details:
https://www.shiksha.com/top-5-mba-specializations-in-india-article-3223-1

The college is good at marketing specialization. The professors are very experienced and knowledgeable. Talking about placement, all the students are well placed every year. Last year all the students who opted for in-campus placement were successfully placed.

It will be difficult to get a good B-School at this score. You can re-apply this year and target to score at least 90 percentile in CMAT to get chances from good B-Schools.

As last year's data is not declared yet, so I can't tell you the exact figure, but as far as I know average package would be around Rs 2.6 to 3 lakhs per annum. But placement is not guaranteed because the placement is always in the hand of student's performance in placement activity.

Marketing as a field has broadened up over the years. There are various verticals in the field.
Although, sales plays a major and most important role. A sales profile is highly paid and growth is immense in the field.
CEO of companies emerge out from top sale people.

Follow digital media and take up small freelance internships with companies. Carry your graduation in the field of commerce to understand the working of the business and most importantly marketing principles.
There are various courses on digital media which can be done side by side to increase profile strength.
All the best.

I think, it is tough to compare finance and sales and marketing. It depends on your choice.

If you choose a good college for MBA, you won't face any problem. MBA in marketing is a good option.

Above 85 or 90 may be the score for admission.

Retail is a specialized form of marketing only. As a sector, retail is the biggest industry in Indian economy contributing to 13% of GDP - compared to IT which is around 6%. Retail is a booming sector and offer a host of career opportunity be it in store management, Data / business analysis or supply chain management. The birth of e-commerce has added another area of job opportunity. Many of PGDM - Marketing guys lands up in retail marketing only.