service contract for miscellaneous maintenance job of unit3 and unit4 for ahpmm stageii for four months at sgtpp wbpdcl -- 1 misc. maintenance job of ahp unit#3 & 4 2 replacement of vacuum pump 3 replacement of hp/lp/eco pumps 4 replacement/overhauling of blower(esp blowers & silo blowers) 5 replacement of ash slurry disposalpump/baotp pump 6 fabrication of platform 7 ba feed gate actuator cylinder dismantling, cylinder seal kit checking if require replacement, gasket fitting and cylinder fitting, if require then cylinderreplacement. 8 ba clinker grinder overhauling 9 rotation of 250nb ba slurrypipeline from ba hopper area to ash slurry sump 10 replacement of collector tank cone => limited