Note : I'm currently holding this for someone while they pick it up. Although i'm still open to offers they will be valid only if my current buyers backs out. I have an apc ups Back-Ups es 500VA for sale preferably to Delhi buyers. I has purchased it in Sep 2005 and used it for 14 months after that as my primary ups. Unfortunately since i ran it from my inverter output in case of a power failure and since it didnt like my inverter's square-wave output i ended up damaging it. Apc under their standard warranty procedure replaced it with a factory refurbished unit in full working condition along with a new battery. It comes with a bill and 2 years comprehensive warranty on ups and battery as i was told by Apc. You can check the warranty details at : http://www.apc.com/support/warcheck/ Model No : BE500Y-IN Serial No : BB0533003174 Now i've purchased and am using a new 650va ups which is working fine with my inverter so this is of no use for me. I think it currently retails for Rs 1800 in the market so i'm expecting somewhere along the lines of Rs. 1200 for it since its a full working unit with warranty, bill and a new battery. I would prefer Delhi buyers as i'm not acquainted with the logistics/costs of shipping such a heavy item. If i do decide to ship it outside Delhi the buyer will have to pay shipping charges extra on the above price. Feel free to contact me by PM or by posting in this thread for any queries. I have done a couple of deals here and some on ebay (with 100% positive feedback) so you can buy from me with confidence!!