It is believed that Kesarwanies are the descendants of Rishi Kashyap from whom they got their gotra "Kashyap". Also, Kesarwanies have their origin from Kashmir, which was founded by Kashyap Rishi.
There are many Legends about Kashyap Rishi in Hindu mythology. As per Padma Purana, once goddess Parvati expressed her desire to know about all the incarnations of Lord Vishnu. Lord Mahadeva replied - Lord Brahma had created numerous Prajapatis like Bhrigu, Mariachi, Atri, Daksha, Kardam, Pulastya, Pulaha, Angira and Kratu.
Sage Kashyap was the son of Marichi (a sage - one among the Saptarshis). He was created by sage Marichi using his mental powers.
In the Mahabharat, according to Vedvyas, Marichi was the son of Brahma. In time, Mariachi had a son named Kashyap who then married the daughters of Daksh Prajapati; Diti, Aditi, Vinta and Kadru.
In other texts it is said that Daksha Prajapati was born out of the right thumb of Brahma and all the people were his descendants. He had one thousand sons and fifty daughters. Sage Kashyapa was married to Daksha Prajapati and Prasuti’s thirteen daughters, named Aditi, Diti, Danu, Kala or khasha or Vishwa, Danayu or Danu, Sinhika, Krodha or Krodhavasha, Pradha or Muni, Vinata, Kapila or Surabhi, Tamra , Ira and Kadru (also Arishta, Surasa).
