Vrihat Samhita is authored by Varaha Mihira. The Brihat-Samhita by Varaha Mihira is an encylopedia of wide ranging subjects of human interest, including astrology, planetary movements, eclipses, rainfall, clouds, architecture, growth of crops, matrimony, domestic relations, gems, pearls and rituals. It contains one hundred and six chapters. This text is the Magnum Opus of Varaha Mihira.