Hell known as Kalasutra
SB Canto 5
SB 5.26 Summary: Those who kill different animals and birds and then cook them are put by the agents of Yamarāja into the hell known as Kumbhīpāka, where they are boiled in oil. A person who kills a brāhmaṇa is put into the hell known as Kālasūtra, where the land, perfectly level and made of copper, is as hot as an oven. The killer of a brāhmaṇa burns in that land for many years. One who does not follow scriptural injunctions but who does everything whimsically or follows some rascal is put into the hell known as Asi-patravana. A government official who poorly administers justice, or who punishes an innocent man, is taken by the assistants of Yamarāja to the hell known as Sūkaramukha, where he is mercilessly beaten.
SB 5.26.7, Translation: Some authorities say that there is a total of twenty-one hellish planets, and some say twenty-eight. My dear King, I shall outline all of them according to their names, forms and symptoms. The names of the different hells are as follows: Tāmisra, Andhatāmisra, Raurava, Mahāraurava, Kumbhīpāka, Kālasūtra, Asi-patravana, Sūkaramukha, Andhakūpa, Kṛmibhojana, Sandaṁśa, Taptasūrmi, Vajrakaṇṭaka-śālmalī, Vaitaraṇī, Pūyoda, Prāṇarodha, Viśasana, Lālābhakṣa, Sārameyādana, Avīci, Ayaḥpāna, Kṣārakardama, Rakṣogaṇa-bhojana, Śūlaprota, Dandaśūka, Avaṭa-nirodhana, Paryāvartana and Sūcīmukha. All these planets are meant for punishing the living entities.
SB 5.26.14, Translation: The killer of a brāhmaṇa is put into the hell known as Kālasūtra, which has a circumference of eighty thousand miles and which is made entirely of copper. Heated from below by fire and from above by the scorching sun, the copper surface of this planet is extremely hot. Thus the murderer of a brāhmaṇa suffers from being burned both internally and externally. Internally he is burning with hunger and thirst, and externally he is burning from the scorching heat of the sun and the fire beneath the copper surface. Therefore he sometimes lies down, sometimes sits, sometimes stands up and sometimes runs here and there. He must suffer in this way for as many thousands of years as there are hairs on the body of an animal.