The ratings also reflect the bank’s sound liquidity position and sturdy capitalisation levels, the rating agency said.
"Nonetheless, the outlook on the long-term rating has been revised from stable to negative, owing to the influx on non-performing loans (NPLs)," it said.
It also reflects the fact that frequent changes within the management hierarchy hinder the bank from executing a clear strategy.
LDB was set up in 2006 with the objective of strengthening the small and medium-scale enterprises (SMEs) sector.
The bank focuses on providing funding to start-up SMEs, a segment overlooked by other financial institutions due to its inherently higher risk, RAM Ratings said.
LDB merged with two other state-backed development finance institutions in 2008.
Following state election