Hello Hymavati,

One can do MSC after bsc agriculture. Lost of government and private jobs are available after bsc agriculture. One may find jobs as Managers at Plantations, as Officers at Fertilizer Manufacturing firms, Agriculture Machinery Industries, Agricultural Products Marketing firms, Food processing units etc. 

Both MS and MSc are Master of Science. However, both are entirely different. Students who wish to do the MSc course should have done BSc in any of the Science subjects. But, those who have completed the bachelors' in Engineering or masters' program in Science and Humanities can do the MS program.

Hope this will help you. All the best.