A notable feature of this study is that it is representative at the level of economic clusters. Urban India has been divided into four clusters: metros (population more than 5 million), boom towns (2.5- 5 million), niche cities (1-2.5 million) and other urban towns (less than 1 million). Based on a district development index, rural India has been sub-divided into three different clusters: “developed rural”, “emerging rural” and “underdeveloped rural”. The first category includes districts such as Bhatinda and Kangra. The second category includes districts such as Latur and Kamrup, while the last category includes districts such as Kalahandi and Bastar.