Tender For corrigendum : supply of hydrogen natural gas blending system and metering streams in form of skid - natural gas filtration skid as per tender specifications , natural gas custody transfer metering skid with fcu as per tender specifications , hydrogen pressure reduction skid as per tender specifications , hydrogen custody transfer metering skid with fcu as per tender specifications , gas analyser package for hydrogen blended natural gas as per tender specifications , natural gas fcv unit as per tender specifications , hydrogen-ng blend custody transfer metering stream as per tender specifications , supervision charges as per tender specifications