Mumbai, April 15 -- Vedanta Ltd has entered into an agreement to raise Rs.3,900-4,000 crore ($470 million) from state-run Power Finance Corporation Ltd to ramp up its power-generation capacity, according to two people directly aware of the arrangement. To begin with, Vedanta has secured a rupee term loan facility of at least Rs.3,918 crore from PFC for 11 years, these people said. The agreement is a part of the group's renewed focus on growing its energy portfolio in India amid cut-throat competition among large domestic corporations....