McDowell's No. 1 Reserve is a blended whisky that combines Scotch single malts from Diageo distilleries in Scotland with Indian single malt and grain whiskies. It was launched in 1968 and is produced by McDowell & Co., a part of United Spirits Limited, which is owned by Diageo India since 2014. This whisky has become the best-selling whisky brand in India and the largest seller globally, with around 30 million cases sold annually.