Cartogram of Sri Lanka using cartogram.js and d3js. Code is not compatible with latest topojson.js.
See this alive - http://www.dedunu.info/sri-lanka-cartogram/
Sri Lanka's Distric level topojson file - https://github.com/dedunu/sri-lanka-cartogram/blob/gh-pages/data/sri-lanka.json