b urden of tax and how it compares u n-favourably with others a s to amount to hostile discriminati o n. In the absence of such d ata, it is not possible to hold in fav o ur of the petitioners and t h e petitions are liable to be dismiss e d on this ground alone. 51. It is further to be noted t h at the tax imposed varies fr om Rs.0.80 per square foot per annum to Rs. 1.00 per s quare foot per annum. This by no stretch is an exorbitant r ate. Nor has it been pointed ou t with reference to any p articular case that it causes great h ardship, though that too i t self may not be a ground to impu g n its validity. Moreover, t h is notification remained operative only from 28th February, 2 013 to 20th February, 2015. I t was modified by the n otification dated 20th February, 2 0 15 as per which the tax w as levied per square feet per annu m to be calculated on the b asis of multiple factors Location o f the Building; Nature of u sage (Commercial, Institutional i n cluding Hotel, Marriage P alaces, Hospitals, Industrial an d other purposes); Land V alue Factor (Collector Rate per acre); Type of building and c ost of construction of building fac t ors, Rental Value Factor e tc.”