Sigma Testing and Research Center is an accredited food safety analytical laboratory specializing in microbiological analysis for the food, beverage, and environmental industries. They have extensive experience providing services like routine microbiological testing, resolving processing problems involving spoilage or pathogen contamination, assisting with regulatory matters for detained products, and testing imports for issues like Salmonella and Listeria according to FDA requirements. Sigma is located in Delhi, India and can be contacted through their website or by phone or email for food safety testing needs.