In one simple step:
'India has failed to reduce its purchases of Iranian oil, and if it doesnâ??t do so, President Barack Obama may be forced to impose sanctions on one of Asiaâ??s most important nations, Obama administration officials said yesterday.A decision to levy penalties under a new U.S. law restricting payments for Iranian oil could come as early as June 28, according to several U.S. officials who spoke on condition of anonymity because of the sensitivity of the issue.
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I imagine this is going over well in New Delhi.