The Unique Identification Authority of India (UIDAI) has declined to divulge details of the money it spent on advertising and promoting the 12-digit biometrics-based identification number, Aadhaar, over the past eight years, according to economist Reetika Khera, who had filed an application under the Right to Information Act seeking the aforementioned details.
In her application dated November 15, 2017, Khera had sought the list of enrolment agencies empanelled since the creation of UIDAI in 2009 and the amount spent in each financial year for each agency. The UIDAI responded on January 3, 2018, but refused to divulge the details of expenses incurred on advertising and promotion.
— source hindustantimes.com