Question: The 2011 Mumbai bombings occurred at an opera house that was completed in what year?
Sentence (from "2011 Mumbai bombings"): The 2011 Mumbai bombings (often referred to as 13 July ) were a series of three coordinated bomb explosions at different locations in Mumbai, India, on 13 July 2011 between 18:54 and 19:06 IST.
Relevant evidence: Yes