Originally posted by: RainOfDew
 
I read that book too🤣I hv no words tbh lol
It was based on Karna Uruvi (idk if he has a wife named Uruvi though.. i just know Vrushali nd Supriya)
None of Karna's wives name is mentioned in most major recession of Mahabharata
One of his wives Padmavati is mentioned in Jaimini Bharat(which many think is a very late work) she is the mother of Vrishketu(who isn't mentioned in Mahabharata either)
Few souuthern recession have a name Paurnovathy.
Indonesian recession mentions one of his wives named Sumati who was the daughter of Shalya(Her sister Banuwati was married to Duryodhan and other sister Rewati to Balram, so Balram Karna and Duryodhan were brothers in law according to this recession) but part this isn't considered very authentic 
Vrushali isn't a name known in any ancient texts, it was most probably an intervention by Mritunjay novel (Marathi and Hindi), Supriya is from a folklore in Orrissa (Kalinga area) they consider Duryodhan and Karna as their sons in laws. Also there Duryodhan is considered more of an anti hero than a villian.
Uruvi basically is nowhere known, probably the introduction of this character was by this novel. She even made her a sister of Draupadi so have absolutely zero idea 
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