Patala Loka & Naga Kingdom

पातालनागलोकवर्णनम्

Ch. 1–40: Seven layers of the underworld (Atala, Vitala, Sutala, Talatala, Mahatala, Rasatala, Patala), the Naga kingdoms, Vasuki and Shesha as supports of the earth, and the riches hidden in the netherworld.