Sandna was the daughter of Daksha Prajapati. She married Suryadev (son of Brahma). Sandna and Suryadev had two sons Dakshinadhipati Yama and Shri Shaneshwar and four daughters Tapti, Bhadra, Kalindi and Savitri. Sandna created a shadow of herself called Sanvarna. Shanidev wanted to be served first. He kicked Sanvarna. She cursed him to break a leg and be lame. http://www.shanishinganapur.com/temple.asp?serialno=3&tempid=T012&desctitle=The+legend+of+Shanidev Yama Shani Saturn Ganesha