Fitch said it had given a 'AA-(lka)(EXP)' rating to a proposed 5.0 billion rupee senior debenture sale.
DFCC is in merger discussions with Sri Lanka's National Development Bank.
Fitch said DFCC's loan book grew faster than the banking sector and recorded an increase of 15.4 percent in the year to March 2014. More than 75 percent of the growth came from DFCC Vardana Bank which Fitch rated the same as the parent.
DVB's loan book accounted for about 45 percent of the group's loans at end-Mar 2014 (end-Mar 2013: 40.9 percent).
"Although DFCC's asset quality has historically remained weaker than its peers, the bank has been able to control the slippage of asset quality better than most peers in a challenging operating environment," Fitch said.
"DFCC's provision coverage remained comparable with its rating peers."
Capitalization had fallen over the year but was strongest among peers with Fitch Core