The proposed debt issue has tenures ranging from five to seven years, and will have both fixed and floating coupon rates. Capital will be re-paid on maturity.
The proposed debenture will be used to finance loan growth and will also help strengthen the bank's tier 2 capital.
It is expected to be listed on the Colombo Stock Exchange, and is DVB's initial step in fulfilling the regulatory listing requirements for licensed commercial banks.
The ratings reflect Fitch's expectation that support would be forthcoming from its parent, DFCC Bank which is rated 'AA(lka)', should it be required, Fitch said.
DVB is almost fully owned by DFCC, with the latter increasing its stake to 99.01 percent in June 2011 via a rights issue which will increase DVB's capital base by 1.1 billion rupees.
It accounted for 33 percent of the DFCC group's assets at end-March 2011,