Seeking Help Query about Aadhar linking with SIM card.

[Sarkar]

But the aadhar number will already be entered and who knows how will it be misused?

Why restricting it only to aadhaar ? Then All exam candidates should not give Xerox copy of ID proof to invigilator, don't quote ID number while booking Tatkal ticket, don't give ID details to hotels when you check in, don't apply for voted ID as these Voter ID list is already available with political parties who gives you voter slip, all these are just few examples. Who knows how will these data be misused So one should Never give his true details to anyone, neither to bank not to Govt/police or IT dept .