Supply, Installation and Commissioning of 01 Nos. 20 Cu. M. Electric Rope Shovel with AC Electrical Drive System along with Consumable Spares and Consumables for 12 months of warranty period from the date of commissioning of the equipment and thereafter Spares & Consumables for a period of 24 months on trial basis and on being declared proven after successful performance during trial period of 36 months, supply of Spares & Consumables for a further period of 60 months on proven basis