corrigendum - procurement of spares of elgi make compressors model no . nh-400e-9 of 2x660 mw , sstpp , mppgcl , dongalia , diff . pressure switch-vtpd3po/mp55/ipsd50 model no . :b221901 , flow switch 600 lpm model no . :b003800180001 , diff pressure switch rt262a model no . :b002200510001 , discharge temp . switch rt123 5m model no . :b172004 , panel view pvp400 2711-pk4 c5d model no . :8901019 , analog input module if4 model no . :8901016 , allen bradley ml1400 dc io/relay model no . :8901014 , plc sys . ml1400 pvp400 rtd 24v model no . :418300311 , solenoid valve model no . :b73xx04 , pressure transmitter -1 to6 model no . :897902r , pressure transmitter 0 to 16 model no . :8979023 , pressure transmitter 0 to 6 model no . :8979018 , discharge temp . transmitter 0 to 300 model no . :8979029 , transmitter inerstage/oil temp 0 to 150 model no . :8979028 , pressure switch interstage model no . :b185103 , blow off pressure switch model no . :b182010