operation and maintenance of 10 nos. 08 passenger lifts in 09 nos. blocks (b1, b2, c1, c2, d2, e1, f1, f2, ff & g) at residential qtrs. for income tax, singhee park, kol-20 (sh : comprehensive maintenance of 02 nos. kone make lift in ei block at gpra qtrs., 16, dover lane, singhee park, kolkata during 2024-25)
