Government wants the Adhar card to be a crucial and compulsory unique identification card for many matters mainly financial transactions in connection with government.
Concerned public has been continuously raising doubts about the privacy of various confidential information about Indian citizens. The data collected for Adhar card includes very vital and totally private and personal info about an individual like finger prints, bio markings of pupil of eye etc. No one can assess the damage potential for the individual as well as the country if they are leaked to other countries or vested interest piece meal or en-bloc.
Supreme court has also observed in cases brought before it that as there is no legal backing government cannot make it mandatory by executive directions.
It is to remedy the legal lacuna observed by court that the government brought a bill. They got it passed in Lok Sabha. As the BJP government knows that it cannot get it passed in Rajya Sabha, they circumvented that problem by bringing the Adhar Bill as Money bill, which does not affect even if it is rejected by Rajya Sabha. It only needs to be resubmitted and passed in Lok Sabha once again.
That being done, now it needs President's assent to become a law.
The irony is that it was BJP who opposed Adhar tooth and nail in the previous Lok Sabha when UPA was ruling. Now when Congress is opposing, BJP government is going in super speed to implement with extra vigour. That again gives people their own unexplained doubts.
Probably there can be further litigation on the matter, we have to wait and see.