Thanks 4 the info. I read somewhere tat Gauri abducted a dancer from Ajmir, can't remember her name now n took her to afgan. he was so please of her beauty tat he wanted 2 marry her, but the gal loved prc but she never expressed 2 prc. she ran away from afgan n took shalter from prc n informed abt her lov 4 him. then prc waited n after sometime he married sanio n someone else from his courtier married her, but ghory was very angry about tat n he also heard about the beauty of sanio. So when he heard prc married sanio he wanted 2 take revenge. But there were some controversies also about some fakir n sanio's father who inspired ghory 2 attack again. I got all info from net. But I think real story is only in the book.
yes, sanyo's father, jaichand, who wanted a revenge against PRC motivated ghori, an' then he, jaichand, was later killed by ghori himself 'coz jo apne desh ka imandar nahi rahe sakta, vo dusre desh ka kya wafadar rahega.