Kadupul is a new restaurant which will open sometime in April, according to its website. It is located in a small strip mall on the corner of Alcosta Blvd and San Ramon Valley Blvd. This is the same location where Turkuaz Turkish Market used to be. I happened to drive by and I stopped to see if I could snag a menu. Peering inside, I could see that the remodeling is not finished but it appears that they might make their deadline.
This seems to be a restaurant spawned from a catering business. The website announcing the opening of Kadupul links you to what appears to be a catering service located in Livermore and serving a Bay Area. The catering menu looks mighty fine. More info at:
Kadupul Sri Lankan Cuisine
8939 San Ramon Valley Blvd
San Ramon, CA