Uday Construction, S.No. 148 Ravet

A residential complex in Ravet, Pune, built as apartment towers of about 24 floors with two- and three-bedroom flats, standing on a podium: a basement and a ground floor for parking, a first floor at podium level with landscaped areas, a refuge floor, a recreational floor, typical floors and a terrace, on a plot beside a 24 m road. The structure and the floor plans come from the architect; our work is the building services that run through them. The basement sits about 5 m below the ground floor, so every service has to be settled with the structure early: two 630 kVA transformers and a 320 kVA DG set on the ground floor, four underground water tanks beneath a ramp beside a 78 m² pump room, a basement that must be dewatered and drained, and a fire-fighting system that serves the basement parking and the full height of the towers from a terrace tank. The drawings were issued to the project management consultant as an MEP data submission in September 2026.

We are the MEP consultant for the project and prepared the services drawings from the basement to the terrace. Water supply and storage: four underground tanks beside the pump room - fire water 200 KLD, domestic 101 KLD, drinking 38 KLD and raw water 35 KLD - with a 17-sleeve chart giving every sleeve's size (50 to 200 mm), flange type and level above the tank bottom for the corporation, tanker, borewell and treatment-plant inlets, the overflows, test drain, and the pump suctions and deliveries; on the terrace, domestic tanks of 49,000 and 19,000 litres, a 44,000-litre flushing tank, a 20,000-litre drinking tank and a 25,000-litre fire tank, with a service platform, booster pumps, supply by gravity and by boosting, and pedestal supports for the pipes. Dewatering and drainage: a basement dewatering layout of five sumps with duty and standby submersible pumps, a 65 mm pumping line to the ground floor, 300 mm storm-water gutters with perforated gratings laid to a 1:150 slope and 150 mm hume pipes through sleeves; a sub-soil drain of 110 and 160 mm perforated pipes wrapped in geo-fabric, with a sump and weep holes; and a diversion layout for the basement and ground floor that ties into the existing storm-water and drainage chambers. Plumbing inside the buildings: toilet layouts for the first, typical and refuge floors with 110 mm soil, 75 mm waste and 40 mm basin pipes, multi-floor traps, ledge walls, 150 to 300 mm sunk slabs, wall-hung closets with dual-flush valves, and balcony and kitchen drain details. Fire protection: internal fire layouts for the basement, ground, podium and refuge floors and the terrace - sprinklers over the stack parking in an upper and a lower zone, an 80 mm sprinkler riser in the flats, hydrants with a booster pump layout at the terrace, 2-way and 4-way fire inlets, pressurisation shafts at the lift lobbies and extinguishers to IS 15683. Electrical: a basement fixture and conduit layout with the panel room (APFC, changeover and DG panels), timer-controlled and always-on lighting circuits of about 140 light points, a fire alarm system and emergency lights; an electrical duct and meter room layout for every floor with the transformers, LT panels, four meter panels and a sub-distribution panel, with one meter room serving 96 flats; and a coordinated flat layout showing every switch, socket, TV, telephone, camera, geyser, inverter and air-conditioner point with its mounting height, as well as the general wiring notes. Ventilation: a basement exhaust layout with jet fans and an axial fan. Coordination: a six-sheet layout of every sleeve and cutout through the first slab and retaining walls, so the structure could be cast once. The set was revised through the first half of 2026 and issued as a combined MEP data submission in September 2026. Calculations (October 2025 to May 2026): the electrical load of 192 flats at 75 W per sq m of carpet area, five 15 HP lifts, pumps, ventilation and pressurisation, a recreation floor and charging for 20% of 201 car and 71 two-wheeler bays - 1,898 kW connected and 941 kW after diversity, which is 1,046 kVA at 0.9 power factor and 1,255 kVA with a 20% margin, served by two 630 kVA transformers; a 320 kVA diesel set sized from 255 kVA of lift, pump, ventilation and external loads at 0.8 diversity; water demand of 129.6 kL a day for 960 people at 135 litres each, 418 kL of underground storage and a 120 KLD sewage plant that returns 47.5 kL a day to flushing and the gardens; fire pumps of 2,850 lpm at 140 m head with a jockey pump; and a 17 kL basement sump sized from 30 sprinklers discharging for ten minutes.