Sri Lanka negotiated the loan from the IMF during the height of fighting and received the cash two months after the conflict with Tamil separatist rebels ended in May 2009.
The island's foreign reserves had dropped to a dangerously low level of one billion dollars towards the end of the fighting that claimed up to 100,000 lives over nearly four decades.
The island’s foreign reserve stock stood at 7.2 billion dollars, just enough to cover four months of imports, the Colombo-based bank said Tuesday.
The one-billion 10-year debt issue, the island’s third Eurobond, was sold in July with a yield of 5.875 percent.