Reading the stars...
Jataka Tattva · by Mahadeva
Chapter 1 · Basic Terms and Definitions
संज्ञातत्वम्
त्र्यायखारय उपचयाः ।
The 3rd, 6th, 10th and 11th houses are upachaya (growth house).
धर्मात्मजौ त्रिकोणौ ।
The 9th and 5th houses are trikona (luck house).
तुर्याष्टमौ चतुरस्रौ ।
The 4th and 8th houses are chaturasra (square house).
स्वास्तौ मारकौ ।
The 2nd and 7th houses are the maraka (death-giving planet) houses.