ata ▁says ▁that ▁Bra h ma ▁con ferred ▁upon ▁Kub era ▁the ▁lord ship ▁of ▁wealth , ▁friendship ▁with ▁Sh iva , ▁god hood , ▁status ▁as ▁a ▁world - prote ctor , ▁a ▁son ▁called ▁N al ak ub era / N al ak ub ara , ▁the ▁P ush p aka ▁V im ana ▁and ▁the ▁lord ship ▁of ▁the ▁N air r ata ▁dem ons . ▁ ▁Both ▁the ▁Pur anas ▁and ▁the ▁Ram ay ana ▁feature ▁the ▁half - blo od ▁sib lings ▁of ▁Kub era . ▁V ish ra va , ▁Kub era ' s ▁father , ▁also ▁married ▁the ▁Rak sh asa ▁( dem on ) ▁prin cess ▁Ka ik esi , ▁who ▁mother ed ▁four ▁Rak sh asa ▁children : ▁Rav ana , ▁the ▁chief ▁ant agon ist ▁of ▁the ▁Ram ay ana , ▁K umb h ak arna , ▁V ib h ish ana ▁and ▁So or pan aka . ▁The ▁Mah ab har ata ▁regards ▁V ish ra va ▁as ▁the ▁brother ▁of ▁Kub era , ▁so ▁Kub era ▁is ▁described ▁as ▁the ▁uncle ▁of ▁Rav ana ▁and ▁his ▁sib lings . ▁It ▁records ▁that ▁when ▁Kub era ▁approached ▁Bra h ma ▁for ▁the ▁favour ▁of ▁su pers eding ▁his ▁father ▁Pul ast ya , ▁Pul ast ya ▁created ▁V ish ra va . ▁To ▁seek ▁the ▁favour ▁of ▁V ish ra va , ▁Kub era ▁sent ▁three ▁women ▁to ▁him , ▁by ▁whom ▁V ish ra va ▁beg ot ▁his ▁demon ▁children .