Ashtaka Varga (Ashtakvarga) by C S Patel and C. A. Subramania Aiyar

Arudha System of Prediction by C S Patel

Nadi Astrology by C S Patel

Predicting Through Navamsa and Nadi Astrology by C S Patel

Navamsa in Astrology by C S Patel