The Calcutta graticule is located around latitude 22, longitude 88. It encompasses Kolkata, Howrah, Maheshtala and parts of Sunderbans. The graticule is mainly land, but does have some water. It has a fair amount of open country, villages and forested area. It should be interesting geohashing area.
2008-07-07 88 Near Basirhat. The area is mainly villages and open fields.