Hi, The decision depends on few parameters. 1. An Engineering grad with Zero work experience but with a good MBA degree is preferred choice of the industry.
2. In case of a commerce grads, some work experience is appreciated in addition to a MBA degree.
3. In general in India there is a tendency to pursue MBA immediately after completing Bachelors degree. But if you are interested in doing your MBA from foreign univ. through GMAT then work experience is preferred.
Please note that I am not speaking from experience but from what I have gathered from my friends during discussions.