Like Carvajal, he's been left disappointed by the existing rules for acquiring citizenship, and stands to benefit from the new system.

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The rules also prevent Nasdaq from acquiring more than 14.99% in one week's time.

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Prime Minister Manmohan Singh's government had been hoping to push through legislations on easing foreign-investment rules in the insurance and pensions sectors and acquiring land for industrial and infrastructure projects in the budget session.

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