I stand for Ipomoea staphylina of Convolvulaceae family. Please provide more information as Shrikanth Ji mentioned to confirm the id.
Regards, Giby -- GIBY KURIAKOSE PhD Ashoka Trust for Research in Ecology and the Environment (ATREE), Royal Enclave, Jakkur Post, Srirampura Bangalore- 560064 India Phone - +91 9448714856 (Mobile) visit my pictures @ http://www.flickr.com/photos/giby
