What is the ideal window size for a north-west-facing pooja room in Delhi?

Vastu and composite climate together suggest a window approximately 4 feet wide with a sill height of 2.5 feet on a north-west face for a pooja room in Delhi. Type: Sliding 2T. Glazing: clear.

Is North-West an auspicious direction for a pooja room per Vastu?

North-West is an acceptable secondary placement for a pooja room. The traditional ideal is NE, but the room remains usable in North-West with the standard window choices.

Why does Delhi's composite climate need clear glazing?

Delhi sits in the Composite climate zone (Hot summers, cold winters, monsoon — the climate where classical Vastu was calibrated.). For composite climates, clear glazing balances solar gain, heat retention, and visibility — Operable windows matter more than fixed ones. The same opening that bleeds heat in January welcomes it back in July.

Window Guide · Delhi

North-West-facing Pooja Room

North-West is an acceptable secondary Vastu placement for a pooja room. Window design tunes to Delhi's composite climate.

CompositeDelhiVayu · Vayu (Air)

The recommendation

Width

~122 cm

Sill Height

2.5'

mid sill — measured from finished floor

Type

Sliding 2T

Glazing

clear

Single 6 mm

Overhang / chajja

1.5'

Minimum projection above the window

WWR

15–20%

Total window-to-wall ratio for the room

These figures are advisory — drawn from IS 3792 (Composite 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.

Vayuवायु

Movement, friendship, transient sleep. Guest rooms, garages, daily-use storage.

Vastu's ideal placement for a pooja room is NE. North-West is an acceptable secondary band.

Why Delhi's climate matters

Delhi is in the Composite climate zone (Cwa, Cfa per the Köppen scale; Composite per NBC 2016). Summer temperatures: 35-48°C, winters: 2-15°C. Rainfall: 500-1200 mm/year. Humidity: 20-90% (seasonal).

Operable windows matter more than fixed ones. The same opening that bleeds heat in January welcomes it back in July.

For a north-west face in this climate, the recommendation is a sliding 2t window with clear glazing and a sill at 2.5' — calibrated for hot summers, cold winters, and seasonal monsoon.

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