Hi I have found some more links for you http://www.wwfindia.org/about_wwf/what_we_do/freshwater_wetlands/our_work/ramsar_sites/harike_wetlands_.cfm and  http://www.birding.in/birdingsites/harike_lake.htm and also http://www.gisdevelopment.net/aars/acrs/1997/ts7/ts7008.asp and finally a brilliant article on the History http://www.punjabheritage.org/architectural-heritage/local-enthusiasm-but-official-neglect-for-anglo-sikh-war-monuments2704.html