The (Kairaus) Kauravas who had brothers like Durjodhana and uttered “everything is ours”; their canopy was spread over twelve yojanas (over 48 miles) but (in the battlefield) their bodies were eaten by vultures. (Dhanasari Namdev, pp. 692-93) The Kairaus or Kauravas were the sons of the king Dhritarashtra and his wife Gandhari. They are said to be one hundred in number. Duryodhana was the eldest, then there was Duhsasana. They became jealous of their cousins known as Pandava and wanted to exterminate s them. 

The story of the great war of Mahabharata is based \’ upon their rivalry. Both Kauravas and Pandavas are the descendants of Kuru, but this patronymic is especially applied to the sons of Dhritarashtra.

References :

1. Kohli, Surindar Singh (ed), Dictionary of Mythological References in Guru Granth Sahib, 1993