tender for routine maintenance electrical equipments and panels.(2 times/ month). , routine maintenance mechanical equipments.(2 times/ month). , maintenance/repair of opu system of units.(quarterly) , urgent restoration of unit by way of replacement of damaged t&j bearing or gland sleeves/packing, etc. , maintenance/repair of 11kv switch yard 3x400 kva power transformers and 1x63 kva auxiliary transformer. , dehydrating of 11kv switch yard 3x400 kva power transformers and 1x63 kva auxiliary transformer. , maintenance of cooling system of units and replacement of defective parts.(quarterly). , arrangement for shutdown of power house for winter season. , arrangement for restart of units after winter shutdown , snow clearance & frazil chopping during winter from switch yard/equipments and cable trenches.(3 months) , repair/ restoration of wear rings of turbine units. , maintenance/replacement of battery bank cells and charger. (quarterly) , maintenance/repair of illumination systems in the powerhouse and peripheral areas.