supply dismentling and eraction of ms central shaft for 2000 hl clarifier for season 2025-26 , supply, of m.s. central shaft fabricated by 8 mm. m.s. plate & s.s. mud seal ring, s.s. bolt and s.s. tiered covered with m.s. pipe sealing suitable for 2000 hl capacity, 3 chamber clarifier. shaft dia-710 mm, length-6575 mm. (approx) as per existing shaft/drawing no. s.k. no. 5 5/8/17. , dismantling of old central shaft and erection of new central shaft thoroughness run out/ovality 0-0, including erection of all existing accessories as mud boot cover ring scrapping arm distribution plate mud scrapper & fitting of mud seal arrangement shaft drive arrangements scrapper arms shaft should have proper alignment for free movement in each compartment and leak proof successfully trial of clarifier.