Sat Shri Akaal ji, Welcome to sikhiwiki. www.india9.com (a tourist booking site) agrees that Lakhnaur, is on the Ambala-Barola Road in Ambala District 12 km from Ambala. Map India  shows the village of Ambala to be near Thanesar. Now most likely inside the growing city. It seems likely that both pages are correct.
Again welcome to the site. Das Allenwalla 10:19, 18 July 2008 (UTC)