रहस्यत्रय Rahasyatraya = Rahasyatraya - Alwar RORI - 12 Folios - Paper - Chants(Hindu) Hindu mantras Mantra Tantra . Complete Sūktatraya MFL New Delhi IGNCA Sanskrit Devanagari Devanāgarī Subjects--Uniform Titles: Tantra ; Mantra ; Hindu mantras ; Chants(Hindu) Dewey Class. No.: RIR / 613