The company said that in 1998, when it spun-off from PepsiCo ( PEP), 22% of its earnings were internationally sourced, compared with a 65% share today. It expects that figure to grow to 75% by 2015.

Yum!'s chief of India operations said in November he expects revenue to grow between 35% and 45% in 2011. Comparable same-store sales, or sales at stores open at least one year -- a closely watched metric in the restaurant industry -- should increase in the mid-teen percentages, Niren Chaudhary told Reuters at the World Economic Forum's India summit.

"So 2011 is going to be a transformational year in which I personally expect that we will beat all of the metrics of 2010. So we will grow faster, we will build more stores and hopefully get more recognition for the brand," he said.

Other U.S.-based restaurateurs such as McDonald's ( MCD) and Starbucks ( SBUX) have also looked to international expansion as a means of boosting profits.

McDonald's said in December it plans to open 200 stores in China , growing its presence in the region by 40% over the next couple of years.

The Golden Arches said its investment will include opening new restaurants and updating existing stores. Among the new store openings, about half will be drive-through locations, McDonald's said.

Starbucks said last week it plans to expand in India , according to an alliance with Tata Coffee, announced in mid-January.

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