Introduction
Towards the end of the twentieth century and in the first decade of the twenty first century, the world has undergone a drastic change. This has been, in a large measure due to the tremendous advances in transportation technology and internet communication technology. Goods and services from any corner of the world are accessible to anyone in any other part of the world. The rich and the middle class all over the world have access to latest in fashion, food and electronics. However, in every country, a considerable fraction of the population live in abject poverty and the modern ...
