yes, I know what a sari is, thank you. (I was once an Indian for purim and wore a real sari for my costume). BTW, you dont have to necessarly wear pants with the sari. Usually you wear a long skirt, and sleeves could be long (though generally you are right that they are mostly short sleeves). It’s only recently with modernization that the sari dress/style has changed. Google some pictures and you will see all kinds. I think you are confusing the pants to the outfit of the salwar kameez and the ghagra choli.
What I meant was that she used the fabric of the sari to make her wedding dress. Sorry for not being clear enough.