“…CSOM is predominantly caused by Pseudomonas aeruginosa, Escherichia coli, S. aureus, Streptococcus pyogenes, Proteus mirabilis, Klebsiella species among aerobic bacteria. However, Bacteroides, Pepto streptococcus, Propionibacterium are common anaerobic bacteria 4,5 . In India, studies were conducted at various parts of the country to establish common pathogen and antibiotic susceptibility.…”