Unprecedented rainfall, unplanned urbanisation and lack of preparedness are the basic reasons behind the floods which have devastated Jammu and Kashmir, a Delhi-based environment research and advocacy organisation said. br br For more videos go to br Like us on Facebook at br Follow us on Twitter at br Follow us on DailymoUnprecedented rainfall, unplanned urbanisation and lack of preparedness are the basic reasons behind the floods which have devastated Jammu and Kashmir, a Delhi-based environment research and advocacy organisation said.