Window Guide · Mumbai
North-East-facing Pooja Room
North-East is the ideal Vastu direction for a pooja room. warm-humid climate adds specific window-design choices.
The recommendation
These figures are advisory — drawn from IS 3792 (Warm-Humid zone) and Vastu Shastra teaching tradition. An architect should adapt them to your plot's exact bearing, plinth height and facade design.
Why this direction for a pooja room?
A pooja room window's job is to bring morning light to the deity at dawn — small, high-sill, and on the NE wall ideally. The window should never face directly at the deity but rather light the side wall, creating soft fill light during morning aarti.
Light, clarity, and morning prana. The most sacred quadrant in Vastu.
Vastu's ideal placement for a pooja room is NE — North-East sits in this band.
Why Mumbai's climate matters
Mumbai is in the Warm-Humid climate zone (Aw, Am, Af per the Köppen scale; Warm-Humid per NBC 2016). Summer temperatures: 30-38°C, winters: 18-28°C. Rainfall: 1000-3000 mm/year. Humidity: >70%.
Verandahs are not decoration here — they are the building's lungs. Skip them and the house cannot breathe in monsoon.
For a north-east face in this climate, the recommendation is a sliding 2t (cross-ventilation) window with clear glazing and a sill at 2.5' — calibrated for year-round high humidity, moderate temperatures, and monsoon-driven cross-ventilation.
Common mistakes
- Pooja shelf placed against a toilet's plumbing wall
- No window — reliance on artificial light only
- Windows opening onto a common-area corridor instead of fresh air
- Treating it as an air-conditioning problem — in Mumbai's humidity, cross-ventilation across opposite walls always beats sealed AC reliance.