Hedychium species- Lava, West Bengal

Wild Flower- Lava-2:
Date: 17th October.2011
Location: Lava-Algarah road. (5000feet) Darjeeling district. WB

I do not think that the leaves in your pic belong to the seed head.
It reminds me of a ginger. Possibly Hedychium gardenerianum.
Hope this helps.
http://www.onlineplantguide.com/ViewPicture.aspx?id=3807

I had posted similar ones earlier from Munnar and they were identified as fruits of Hedychium flavescens of Zinziberaceae.
Just a guess. Kindly check.