 During the menstrual period of the older queen , Ambika , Satyavati invited Vyasa to Ambika 's bedchamber . However , during sex with Vyasa , Ambika noticed his dark appearance and closed her eyes . Vyasa declared to <unk> that due to Ambika 's cruelty , her son would be blind ( but strong ) and have a hundred sons – later known as Kauravas ( descendants of Kuru ) . Satyavati considered such an heir to be an unworthy king , so she asked Vyasa to have niyoga with her other daughter @-@ in @-@ law . During their niyoga , Ambalika fell pale due to Vyasa 's grim appearance . As the result the child would be wan , Vyasa told his mother , who begged for another child . In due course , the blind Dhritarashtra and the pale Pandu were born . Satyavati again invited Vyasa to Ambika 's bedchamber ; she remembered Vyasa 's grim appearance ( and repulsive odour ) , and substituted a Shudra ( lowest caste ) maid in her place . The maid respected the sage and was not afraid of him , and Vyasa thus blessed her ; her son would be the most intelligent man , and she would no longer be a slave . Vyasa told <unk> of the deception , and then disappeared ; Vidura , an incarnation of the god Dharma , was born to the maid . 
