The model-actress, 45, Tweeted "Not a great day. For the record, my husband Arun and I separated a few months ago. Our close family & friends were aware of this."
After ending her 13-year romance with Hugh Grant in 2000, Hurley began dating Indian textile heir Nayar in 2002. The duo wed lavishly in March 2007 -- first at a castle in England, and then at a palace in Jodhpur, India.
Now Hurley has a son, Damian, 8, with former beau Steven Bing.