406
Śrīmad-Bhāgavatam
[Canto 5, Ch. 24]
Sudarśana  cakra ;  pratihata —defeated;  bala —strength;  avalepāḥ —and pride (because of bodily strength);  bila-īśayāḥ —the snakes;  iva —like;  vasanti —they live;  ye —who;  vai —indeed;  saramayā —by Saramā;  indra-dūtyā —the messenger of Indra;  vāgbhiḥ —by the words;  mantra-varṇābhiḥ —in the form of a  mantra ;  indrāt —from King Indra;  bibhyati —are afraid.
TRANSLATION
Beneath Mahātala is the planetary system known as Rasātala, which is the abode of the demoniac sons of Diti and Danu. They are called Paṇis, Nivāta-kavacas, Kāleyas and Hiraṇya-puravāsīs [those living in Hiraṇya-pura]. They are all enemies of the demigods, and they reside in holes like snakes. From birth they are extremely powerful and cruel, and although they are proud of their strength, they are always defeated by the Sudarśana  cakra  of the Supreme Personality of Godhead, who rules all the planetary systems. When a female messenger from Indra named Saramā chants a particular curse, the serpentine demons of Mahātala become very afraid of Indra.
PURPORT
It is said that there was a great fight between these serpentine demons and Indra, the King of heaven. When the defeated demons met the female messenger Saramā, who was chanting a  mantra , they became afraid, and therefore they are living in the planet called Rasātala.
TEXT 31
ततोऽधस्तात्पाताले नागलोकपतयो वासुकिप्रमुखाः शङ्खकुलिकमहाशङ्ख- श्वेतधनञ्जयधृतराष्ट्रशङ्खचूडकम्बलाश्वतरदेवदत्तादयो महामोगिनो महामर्षा निवसन्ति येषामु ह वै पञ्चसप्तदशशतसहस्रशीर्षाणां फणासु विरचिता महामणयो रोचिष्णवः पातालविवरतिमिरनिकरं स्वरोचिषा विधमन्ति ॥ ३१ ॥
tato 'dhastāt pātāle nāga-loka-patayo vāsuki-pramukhāḥ śaṅkha- kulika-mahāśaṅkha-śveta-dhanañjaya-dhṛtarāṣṭra-śaṅkhacūḍa- kambalāśvatara-devadattādayo mahā-bhogino mahāmarṣā nivasanti