corrigendum : procurement of miscellaneous items - ventfilter controller timer card- for silo, bag filter controller timer card- for buffer, hopper, smps- 240vac/ 24vdc/ 40a, float ss aisi-316 for level, antifreeze controller, level switch- float operated external cage type, for mot area, ball valve 4-way, , ss316, 1000psi, rtd pt 100 duplex od 6 x l 350mm, rtd pt 100 duplex od 6 x l 190mm, head mounted temperature transmitter, temperature transmitter input pt-100 rtd, rtd pt 100 sensor