“The issue has been examined at length in the past at different points of time. Each time, the view has consistently been that the caste Census of Backward Classes is administratively difficult and cumbersome; it has suffered and will suffer both on account of completeness and accuracy of the data, as also evident from the infirmities of the SCEE, 2011 data mentioned hereinabove making it unusable for any official purposes and cannot be mentioned as a source of information for population data in any official document,” the affidavit said.