Tender For corrigendum : providing of facility management services - lumpsum based - industrial; cleaning work for boiling house, centrifugal house, draior house etc; consumables to be provided by service provider (inclusive in contract cost),facility management services - lumpsum based - industrial; cleaning work for boiling house, centrifugal house, draior house etc; consumables to be provided by service provider (inclusive in contract cost),facility management services - lumpsum based - industrial; cleaning work for boiling house, centrifugal house, draior house etc; consumables to be provided by service provider (inclusive in contract cost),facility management services - lumpsum based - industrial; cleaning work for boiling house, centrifugal house, draior house etc; consumables to be provided by service provider (inclusive in contract cost),facility management services - lumpsum based - industrial; cleaning work for boiling house, centrifugal house, draior house etc; consumables to be provided by service provider (inclusive in contract cost)