Dec 10 (Reuters) - Australian left-arm quick Mitchell Starc has decided to undergo surgery on his ankle and is likely to miss the World Twenty20 in India early next year, Cricket Australia said on Thursday. Starc has long suffered from bone spurs in his right ankle and decided to take the opportunity to have an operation to resolve the problem while sidelined by a foot injury sustained against New Zealand. "Mitchell met with specialists late last week to get an opinion on his recent foot