That is untrue - aadhar introduces the problem of false rejections.

First - Most of the savings which the govt has attributed to aadhar they later walked back and admited it was due to gas price reductions and not because of aadhar.

Second - auth failures result in people not getting their ration- these are then counted as savings by the govt. if they were correctly accounted as a liability not only would the savings vaporize, additional costs would appear.