What is better option after completing Mechanical Engineering?

An engineering degree followed by MBA is a very desirable techno-management qualification to possess in a global economy.
While a year or two of working in the field will certainly help you make the most of your MBA programme, be prepared to be placed on a par with a bright but relatively fresh batchmate from your B-school. If you work-experience is in sync with the area for which the company is recruiting, it’s an asset.