Marketing is for Sales and Marketing guys where the targets / achievements are corely involved. large organizations are having kind of depts where target pressures is not given in marketing dept, still its different compare to IT. Operations is related to Back-office. Admin / IT / HR are the part of back-office area.
You can also go for Masters in IT from some other reputed institutes. I think you got to go on IIMT -Interational Institute of Management and Technical Studies-Distance Education Institute Home
You have not given any information about your interests and what you would like to do in 10 years time. Marketing and Operations are two different fields. Marketing involves dealing with customers/clients outside an organisation and operations involves dealing with people inside an organisation. Operations could involve hands-on work like in R&D or getting work done through others as you move up a ladder.