RERA Under Construction
72
✓ RERA Verified Ready To Move
About Forum Atmosphere
Forum Atmosphere, Topsia — where Kolkata's skyline was rewritten.
Forum Atmosphere in Kolkata is not another luxury tower. It is two 39-storey towers rising 499 feet above EM Bypass, joined 400 feet in the air by Deya — the world's first residential floating sky sculpture, a 55,000 sq ft cloud of steel and light that holds an entire private club inside it.
Behind its glass are just 80 homes. Each spans 6,000 to 8,750 sq ft across single-floor and duplex layouts, with private terraces, garden beds and double-height living volumes. Prices begin at ₹20 Cr.
Sidus Realty offers Forum Atmosphere private, appointment-only viewings.
Key Highlights
- Deya — the world's first residential floating sky sculpture. A 100-metre, four-level cloud suspended between the towers, housing the entire clubhouse in mid-air.
- Only 80 residences on 3 acres. One of the lowest density ultra-luxury addresses in eastern India.
- Private terrace and garden bed with every home — roughly 800 sq ft of private outdoor space per residence.
RERA No: HIRA/P/KOL/2018/000257 Verify on WBRERA →
AI-Generated Score
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Our 4-dimension evaluation
Every project on Sidus is scored on four dimensions — developer, location, price-to-value, compliance. Below is our honest read.
0/100
Solid
Sidus Recommended
Solid
Forum Atmosphere is a genuinely singular product — 80 homes, protected wetland views, a structurally iconic clubhouse, and a Ready-To-Move status that removes execution risk at Kolkata's highest price point. The honest limitation is market depth: at ₹20 Cr+ in a city where sub-₹5 Cr defines luxury for most buyers, resale and rental liquidity are extremely thin, making this suitable only for end-users or HNI buyers who do not need an exit within five years.
The four dimensions
Detailed sub-scores available in your personalized memo
🏢
Developer Trust
Strong
Forum Projects has four decades of Kolkata presence and delivered Atmosphere in 2019 against a 2018 HIRA registration — a clean timeline — but their ultra-luxury portfolio is narrow and post-handover CAM conduct for an 80-unit boutique building with a mechanically complex sky-bridge structure (Deya) remains an open data point Sidus should verify directly.
📍
Location Intelligence
Strong
EM Bypass at East Topsia is arguably Kolkata's most strategically central luxury address — equidistant from Park Circus, Ballygunge, Salt Lake and New Town — with protected wetland views to the east that regulatory land-use patterns make genuinely non-buildable, a rare scarcity anchor for a ₹20 Cr+ product.
💰
Price-to-Value
Solid
At ₹20 Cr+ for 6,000 sq ft the implied ₹/sqft of ~₹33,000 is at the absolute ceiling of the Kolkata market with no direct comparables, which makes pricing honest-by-default but also illiquid; loading factor, parking charges, CAM quantum and the long-term maintenance cost of Deya's mechanical systems are missing and material for any buyer at this ticket size.
✅
Compliance
Strong
HIRA registration (HIRA/P/KOL/2018/000257) is in place, possession was achieved in 2019 ahead of typical RERA-timeline pressure, and Ready-To-Move status eliminates construction risk entirely; no complaint data has been provided and Sidus should pull the HIRA portal record to confirm clear title and no outstanding litigation on the Topsia land parcel.
✨ Personalized Analysis
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Configurations & Pricing
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Amenities
- 24x7 Security
- Banquet Hall
- Car Parking
- CCTV Surveillance
- Children's Play Area
- Clubhouse
- Gymnasium
- Indoor Games
- Jogging Track
- Library
- Lift
- Multipurpose Hall
- Power Backup
- Rainwater Harvesting
- Swimming Pool
- Yoga / Meditation Area
Floor Plans & Master Plan
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Location & Connectivity
Forum Atmosphere stands at Mirania Gardens, East Topsia, directly off the Eastern Metropolitan Bypass — the spine that connects South Kolkata to Salt Lake, New Town and the airport. It is one of the few genuinely central ultra-luxury addresses in the city: minutes from Park Circus and Ballygunge, with open wetland and waterbody views to the east that cannot be built out.
Direct EM Bypass frontage with access to the Ma Flyover into central Kolkata
Park Circus 7-point crossing within minutes
Proximity to the Beleghata–Sector V metro corridor
Straight airport run via Bypass–VIP corridor
Neighbourhood bullets
Kolkata's premium hospitality belt: ITC Royal Bengal, Hyatt Regency, Novotel, Swissotel
Healthcare cluster: Apollo Multispeciality, AMRI, Ruby, Desun
Retail: Quest Mall, Acropolis, South City
Open views over the East Kolkata Wetlands — a Ramsar site, protected from development
Why Buy Here
Deya means cloud in Bengali. It is a 100-metre-long, four-level structure suspended roughly 400 feet above EM Bypass, spanning a 60-metre free gap between the two towers — held on just four support points and seismically decoupled from both towers so it can move independently in wind and tremor.
Its skin is expanded mesh wrapped over structural ribs, scattered with mobile reflective discs that catch light and change the sculpture's apparent form through the day. Roughly 150 tonnes of steel substructure, 4,200 sq m of surface, 2,300 perforated aluminium panels and 114 laminated glass panels — with no expansion joints visible on the façade.
Inside and on it:
Sky swimming pool and children's pool
Infinity jogging track in the sky
Squash and badminton courts
Golf putting and driving range · virtual golf
Basketball court
Fully equipped gymnasium and spa
Mini theatre / private cinema
Open-air party deck and amphitheatre
Multiple private lounges and meeting rooms
Banquet and function spaces
Japanese-garden inspired landscaped sky deck
Deya at Forum Atmosphere is the world's first residential floating sky sculpture, a 55,000 sq ft cloud-shaped sky club suspended 400 feet above Kolkata between two 39-storey towers.
Investment Potential
Scarcity is structural. 80 homes, ever. Kolkata produces very little ₹20 Cr+ inventory, and almost none of it is architecturally singular.
Trophy-asset premium. Buyers at this level are buying identity. A National Geographic-featured, WAF-nominated landmark trades differently from generic luxury stock.
Ready and proven. The building is complete and occupied — no delivery risk, immediate possession, immediate rental or use.
Land is finished. Three-acre plots on the Bypass with wetland-side views are no longer available for development.
Resale depth. Kolkata's HNI and NRI buyer pool consistently underwrites the city's top five addresses; Atmosphere sits at the head of that list.
Frequently Asked Questions
Forum Atmosphere is priced from ₹20 Cr onwards. Final pricing depends on floor level, orientation, terrace area and view premium. Since inventory at this level is limited and not publicly listed, current floor-wise pricing is shared on request.
Forum Atmosphere is at Mirania Gardens, East Topsia, directly off the Eastern Metropolitan Bypass in Kolkata — close to Park Circus, Ballygunge and the Bypass hospitality belt.
There are only 80 residences across two 39-storey towers on a 3-acre site — making it one of the lowest-density ultra-luxury developments in eastern India.
Yes. Forum Atmosphere is complete and ready to move, with the project having been delivered following completion of the twin towers and the Deya sky bridge.
Yes. NRIs and OCI cardholders can purchase residential property in India under RBI's general permission, subject to FEMA rules and funding through NRE/NRO/FCNR accounts or inward remittance. We coordinate documentation, PoA and remittance formalities end to end.
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