A spate of billion-dollar deals for Indian banks has thrust the country’s financial sector into the global spotlight, at a time when US credit losses and trade tensions have rattled investors globally.Over the weekend, Emirates NBD Bank PJSC said it plans to invest $3 billion in RBL Bank Ltd., marking the biggest foreign investment in India’s banking sector. Earlier this month, Abu Dhabi’s International Holding Co. PJSC inked a deal to buy into Sammaan Capital Ltd. for about$1 billion, while Sumitomo Mitsu ...