Crediting a "decisive" Prime Minister Narendra Modi for the evolution of the Aadhaar as a "game changer", Union Finance Minister Arun Jaitley on Sunday said Unique Identity Number (UID) has helped the government save around Rs 90,000 crore in the last few years by eliminating several duplicate and fake beneficiaries.

Two days after the Lok Sabha passed a bill to amend three laws to provide legal support to the government's decision to allow voluntary linkage of Aadhaar with mobile phone numbers and bank accounts, Jaitley in his latest blogpost said the Aadhaar under the erstwhile Congress-led United Progressive Alliance (UPA) government was "inadequate" because of its contradictions and indecision.