Biofilm associated infection causes higher mortality in catheterized patients. Identification of cupA gene in Pseudomonas aeruginosa coding for biofilm formation was selected as a primary objective. Synergistic antibacterial drugs (moxifloxacin-metronidazole) were prepared using the selected concentrations for coatings onto urinary catheter samples. Antibacterial coatings of synergistic antibacterial drugs onto a urinary catheter and its antibacterial activity were evaluated using the standard diffusion method. The drug coated catheters were investigated for their biocompatible properties. The biocompatibility of the drug coated samples was investigated on L929 fibroblast cell lines using MTT assay. The biofilm expressing genes (cupA gene) of the selected organism was detected using molecular methods. During the analysis, the cupA gene from the target organism was confirmed by the PCR method aided with the DNA electrophoresis process. The study was confirmed from the obtained DNA fragments of 172bp by comparing with 170bp fragment of reference bacterial strain. Quantitative antibacterial activity results showed that the drug coated catheter samples were significantly reduced the bacterial numbers. Biocompatibility of coated catheter samples evaluated by in-vitro  cell culture cytotoxicity assay exhibited no effect on cell viability of fibroblast cell lines. It is concluded that identifying biofilm expressing genes could help the health care workers to diagnose and treat the patients with an appropriate antibacterial agent.