MBA Sales & Marketing

There is not much difference between the salaries earned by both the professionals. It is because both the majors have their distinct strategic importance for the growth and sustainability of the organisation. Although, the global data shows that MBA in Finance is more preferred by the students, whereas marketing major has its own merits. Go for best B- schools. The best B-schools are:
IIMS
Shailesh J. Mehta School
Xavier's Labour Relations Institute, Jamshedpur
Lovely Professional University (LPU), Punjab
Department of Management Studies, IIT Delhi
Indian Institute of Foreign Trade, Delhi
Management Development Institute (MDI), Gurgaon
Bharathidasan Institute of Management (BIM), Trichy
Narsee Monjee Institute of Management Studies, Mumbai.

I believe, you want to check as to which profession will give you higher salary. Please understand that a specialization doesn't guarantee great salary. It is all about your work & interpersonal skills that help you achieve success. A marketing specialization will offer you a career in Sales, Branding, corporate communication, PR, Consumer insight, etc. Across industry domains.
A Finance specialization will, offer you a career in Credit rating agencies, Asset management. Capital market, Investment Banking, Private Equity, Micro finance, financial planning, academics, accounts, corporate finance across BFSI sector. Your choice would depend a lot on your personality traits & interest areas. Each MBA specialization needs specific personality traits for excelling in the profession, so do evaluate your inherent personality traits and then take a call.