This is a good film that canvasses the destruction to hydropower projects in the upper Ganga basin from the Uttarakhand flood of June 2013:
http://sandrp.wordpress.com/2013/12/16/uttarakhand-flood-ravage-and-the-dams-short-film-english/
http://sandrp.wordpress.com/2013/12/16/uttarakhand-flood-ravage-and-the-dams-short-film-english/