Makes sense to point out here 2 crucial differences between the US and India.
In India, there's no Right to Privacy as strongly guaranteed under the US Constitution. Secondly, there is a strongly articulated bundle of rights called the "Right to Life". This includes the right to food, education, access to free / subsidised health services etc. In India, there are massive government programmes for the provision of basic services (food, shelter, education, irrigation, water, electricity, transport etc) to citizens.
In this context, the people, rather than being wary of the state and treating it like an enemy as is the case in the US actually want the state to help them. If you were to provide an Indian farmer with irrigation, access to primary healthcare facilities, water, sanitation, education and drought/flood relief, most would gladly fork over their private details.
Of course, modern states are brutal and the information collected will no doubt be used to casually repress people and tighten the state's hold on them. However, the integrity of your DNA fingerprint is of little consequence if you've committed suicide because of mounting debts.