I planned to use OSM data for a transport oriented project for the city of Kolkata, India. I started few months back to find that there are large unmapped areas in OSM within the city itself. Also the mapping community activities have slowed down in last couple of years. I would like to call all mapping enthusiasts of Kolkata to join hands to ramp up the Mapping Quotient of the City of Joy effectively. Together we can make a difference. Please contact me on following handles : Twitter : [@jeet_sen] (https://twitter.com/jeet_sen) LinkedIn : Suvajit Sengupta Email : suvajit.sengupta@gmail.com