You're moving goal posts.
Aadhar being necessary for tax filing !== Aadhar is mandatory for operating a bank account, claims which you made in previous posts.
Yes, going backwards government can indeed find your bank accounts because you might quote them on tax forms but having Aadhar is NOT necessary for operating a bank account. I have multiple accounts, none of which have been closed or service being denied for lack of an aadhar number.
>Re Aadhar -- HN readers should note that IndiaStack (indiastack.org, very popular with VCs operating in India) relies a lot on Aadhar, so a lot of people in Indian Startups have a financial interest in not seeing the downsides of Aadhar.
This is exaggerated. People can lead perfectly functional lives without quoting Aadhar to anybody except the taxman. You're pushing it.