Unknown Beauty

I saw this beauty in Botanic Garden, but missed to note down its name..and I regret so much.  It looked like jasmine flower and I clicked it after being attracted by them.  Came back home and out of 100 odd flowers, this one attracted me a lot!  Couldn't find its name.  There is a picture-flower database that I browsed through for about 2 hours checking through each and every picture.  That was utter failure.  

I thought they were some kind of Lupine variety, but these were not conical and they were kind of flowing from top towards earth like curtains.  Being so unsuccessful in deciphering this beauty's name, I posted it in flickr for my friends to identiy.  No success there, but I got a lot of suggestions from them.  Following which, I posted it in a group called "ID Please" - a kind of forum for identifying any flower, plant, bird, animal etc.  I have not got any result from them yet.  I was so fed up after constant failures!   

Now, I am using my last weapon  of presenting it to you!!If there's any botony enthusiasts, please help me identify this flower... Whoever identifies this shall be crowned with "Flora expert award"!!

Edited on 16/05/12 to add:

Guess what?  Got these flower's name. These are Pieris japonica "white cascade" flowers :)