[5] According to Michael Witzel, it is related to Avestan kasiiapa, Sogdian kyšph, Kurdish kûsî, New Persian kašaf, kaš(a)p which mean "tortoise", after which Kashaf Rūd (a river in Turkmenistan and Khorasan) is named.

Thereafter rose Desire in the beginning, Desire the primal seed and germ of Spirit, O Kama dwelling with the lofty Kama, give growth of riches to the sacrificer, (...) Prolific, thousand eyed, and undecaying, a horse with seven reins Time bears us onward, Sages inspired with holy knowledge mount him, his chariot wheels are all the worlds of creatures.

[18] In Buddhist Pali canonical texts such as Digha Nikaya, Tevijja Sutta describes a discussion between the Buddha and Vedic scholars of his time.

[20] In ancient texts of Greece, linked to the expedition of Alexander, this land has been called "Kasperia",[20] possibly a contraction of "Kasyapamira".

Some of the names of the thirteen daughters Kashyapa married in the Hindu text Vishnu Purana are different from the list found in Mahabharata.

[18] Some texts describe Kashyapa as the son of Marichi, ancestor of solar dynasty, a contemporary with Uttamapada the second king of Brahmavarta and who married daughters of Daksha Prajapati the son of Brahma, others mention about him marrying daughters of Daksha Prajapati the last king of Brahmavarta, 15 in male descent from Uttamapada.

[22] The Sindh city Multan (now in Pakistan), also called Mulasthana, has been interpreted alternatively as Kashyapapura in some stories after Kashyap.

[26] In the Vishnu Purana, Kashyap marries thirteen daughters of Daksha: Aditi, Diti, Kadru, Danu, Arishta, Surasa, Surabhi, Vinata, Tamra, Krodhavasha, Ira, Vishva and Muni,[18][27][28] while in the Mahabharata, the names of these 13 wives are Aditi, Diti, Kala, Danayus, Danu, Simhika, Krodha, Pritha, Visva, Vinata, Kapila, Muni and Kadru.

Scholar Vettam Mani, after analysing the epics and Puranas, concluded that Kashyapa may have married 21 women (13 of which were Daksha's daughters) — Aditi, Diti, Danu, Arishta, Surasha, Khasha, Surabhi, Vinata, Tamra, Krodhavasha, Ira, Kadru, Muni, Puloma, Kalaka, Nata, Danayus, Simhika, Pradha, Visva and Kapila.

Once, the sage performed a yajna (a Vedic ritual) in his hermitage in order to offer oblations to the Devas for the welfare of the beings in the world.

Hence, Varuna sought the help of Brahma who appeared before the sage and told him to get rid of his greed which is capable of destroying all his virtues.

Nevertheless, Kashyapa remained firm in his resolve, which enraged Brahma who cursed him, saying that he would be born on earth again as a cowherd.