Preparation and serving of spot bills in consumer premises of LT Cat-I, Cat-II and Cat-IV (Excluding non-slab Services) with GPRS enabled Spot Billing Machines with/without IR,IRDA port readings wherever IRDA port compatible meters exist at ERO/Madanapalle for a period of 12 months from the date of issue of LOA considering each ERO as an unit through E-Tendering in (O) circle, Tirupati