Nagabhata

 https://www.google.com/search?q=Nagabhata

eight

 https://www.google.com/search?q=eight+serpent

https://www.google.com/search?q=eight+serpent+kings

Dhritarashtra

 https://www.google.com/search?q=Dhritarashtra+Naga

Shankhapala

 https://www.google.com/search?q=Shankhapala

Karkotaka

 https://www.google.com/search?q=Karkotaka

kings

 https://www.google.com/search?q=serpent+kings