newskeralaonline.org

http://newskeralaonline.org/london-culcutta-bus-%e0%b4%b2%e0%b4%a3%e0%b5%8d%e0%b4%9f%e0%b5%bb-%e0%b4%95%e0%b5%bd%e0%b4%95%e0%b5%8d%e0%b4%95%e0%b4%9f%e0%b5%8d%e0%b4%9f-%e0%b4%ac%e0%b4%b8%e0%b5%8d-%e0%b4%b1%e0%b5%82%e0%b4%9f/

Wikipedia: London–Calcutta bus service