Not close by, but you might want to check out Curry Corner.
Be sure to call ahead to verify the address and that it's open on Saturday.
Too bad that A Street Cafe doesn't serve lunch on Saturdays, it's near.
Curry Corner Takeaway
26657 Mission Blvd, Hayward, CA 94544
A Street Cafe
1213 A St, Hayward, CA 94541