अधोलोकवर्णनम् (Adholoka-varṇana) — Description of the Lower Worlds and Cosmographic Measures
अक्षयत्वं तु देहस्य प्रापिताम्रणं तथा / तिस्रः कोट्यस्तु विख्याता मन्देहा नाम राक्षसाः
akṣayatvaṃ tu dehasya prāpitāmraṇaṃ tathā / tisraḥ koṭyastu vikhyātā mandehā nāma rākṣasāḥ
Their bodies had attained imperishability and even immortality. Three kroṭis of rākṣasas, famed as the Mandehas, were known.