Conversation so far:
When did Anil Kumble's domestic career begin?
Anil Kumble made his first-class debut for Karnataka against Hyderabad on 30 November 1989, taking 4 wickets and bagging a pair.
When was Anil Kumble's international debut?
Anil Kumble made his ODI debut against Sri Lanka at Sharjah in the Austral-Asia Cup on 25 April 1990.

Question: Where was his international debut?
Self-contained rewrite: Where was Anil Kumble's interntional debut?