Ayadi
Six checks on a building's measurements: Aya (income), Vyaya (expense), Yoni, Nakshatra, Vara and Amsha. Aya should exceed Vyaya and the yoni should be odd. The formulas differ between texts.
- Vastu Shastra
- हिंदी: आयादि
What is the rule behind Ayadi?
Ayadi tests dimensions for Aya (income), Vyaya (expense), Yoni, Nakshatra, Vara and Amsha; Aya should exceed Vyaya and the yoni be odd (Dhvaja, Simha, Vrishabha, Gaja). The formulas differ by text.
Source: Mayamata
Where can you learn about Ayadi?
Ayadi is taught in RishiSetu’s Vastu Shastra course, inside the app, one idea at a time with practice after each.
Related terms
- Dwara vedhaSomething directly in front of the main door, such as another building's corner, a pole or a tree. The main door should be free of it; it is also the largest door of the house and opens inward.
- Vithi shoolaA road that runs straight into a plot. Vastu avoids it; roads on the north and east are preferred.
- BhumiThe plot itself, judged before anything is built: its shape (a square, or a rectangle up to about 1 : 2), its slope (lower to the north and east), its soil and its surroundings.
- MarmaA sensitive point of the mandala, where its main lines cross. The texts ask that pillars, walls and heavy loads not fall on the marmas.
- BrahmasthanaThe centre of the plot, its central padas, which belong to Brahma. It is kept open, free of pillars, beams, toilets, stairs and heavy loads. Traditional houses left it as a courtyard; in a flat, a clear central space serves the same purpose.
- Vastu Purusha MandalaThe plot drawn as a grid of squares called padas: 64 (8 × 8) for temples or 81 (9 × 9) for houses. In the 81-pada mandala Brahma holds the nine central padas and 32 devatas guard the outer ring, 45 devatas in all.
Guruji, your guide
The short answer
Inside the app, you can ask Guruji about any lesson, in your own language.
What does Ayadi mean in Vastu Shastra?
Six checks on a building's measurements: Aya (income), Vyaya (expense), Yoni, Nakshatra, Vara and Amsha. Aya should exceed Vyaya and the yoni should be odd. The formulas differ between texts. Ayadi tests dimensions for Aya (income), Vyaya (expense), Yoni, Nakshatra, Vara and Amsha; Aya should exceed Vyaya and the yoni be odd (Dhvaja, Simha, Vrishabha, Gaja). The formulas differ by text.
Your first lesson takes about five minutes
Sign in with your email, choose your language, and start at the beginning. RishiSetu keeps your place.

