Earlier quoted context omitted.
So then why don't they go and apply to be documented? I'm sure their foreign birth certificate is enough to prove their existence. Oh, that's right, it's illegal and would get declined. Hence the correct term: "illegal immigrants". The topic is complicated and touchy enough without it being muddled with incorrect terminology.
Exactly the reason why India wants documentation via Aadhaar. We have millions of undocumented/illegal immigrants too. From neighbouring Bangladesh (nothing against Bangladeshi's... always welcome through the legal route). They have been enjoying the benefits accorded to them from Indian taxpayer money. Why should Indian exchequer pay for welfare of these illegal immigrants? Before Aadhaar, it was really easy to forg…
1. using the introducer system (The enrollment center operator would gladly do this for you)
2. signing a checkbox that says they've lived in India for 180 days.