Cactus for ID :Flower Show,Mumbai : 110313 : AK-1: 1 image. 5 posts by 2 authors.
A cactus seen at the flower show in Jijamata Udyan, Mumbai in Feb,2011.
Some Cereus sps?
This looks familiar …,
But I really cannot place it. Try looking through http://www.columnar-cacti.org/ , there are lots there to look at. Hope this helps some.