Analysts, however, say implementing the scheme may not be easy as only 222 million people in India have so far enrolled into a biometric identity scheme, most poor families do not have bank accounts and many villages do not have a bank.

BBC: India rolls out cash transfer scheme for poor

Analysts, however, say implementing the scheme may not be easy as only 222 million people in India have so far enrolled into a biometric identity scheme, most poor families do not have bank accounts and many villages do not even have a bank.

BBC: India unveils cash subsidy plan for poor

If it decides not to, the country which has led Europe in designing and implementing criminal-justice policies risks losing not only rapid co-operation and information but also influence over a fast-growing body of EU law.

ECONOMIST: Opting out of the EU