Araceae, Arecaceae and Zingiberaceae Fortnight: August 1 to 14, 2014 : Zingiberaceae : Alpinia vittata : For Validation : Mumbai : 280814 : AK-111 : 4 posts by 2 authors. Attachments (4).
Pictures taken at the Hiranandani Gardens, Powai, Mumbai in Feb, 2014 during TAW.
Another possibility is Alpinia luteocarpa, the Red Bamboo Ginger.
Experts please validate.
It is not A. luteocarpa. I have no idea.