Use Microphones/ Loudspeakers following Noise Level Standards
Government of West BengalDepartment of EnvironmentPrani Sampad Bhawan, 5th Floor J.B-2, Sec-III, Salt lake City, Kolkata-106 No. EN/701/3C-17/2026 Dated, Kolkata
Government of West BengalDepartment of EnvironmentPrani Sampad Bhawan, 5th Floor J.B-2, Sec-III, Salt lake City, Kolkata-106 No. EN/701/3C-17/2026 Dated, Kolkata