Indian lender UCO Bank has received government approval to facilitate trade payments for Nayara Energy Ltd., according to people familiar with the matter, nearly two months after the refiner was sanctioned by the EU and subsequently shunned by large financial institutions.Senior executives from the mid-sized state-owned lender recently met with top finance ministry officials, the people said, asking not to be identified as the discussions are private. They were asked to take the lead in executing the paymen ...