22 Cases Registered Over Firecracker Violations in Nagpur; 95 Complaint Calls Expose Challenges in Noise. Firecrackers exceeding the 55-decibel noise limit are being sold openly in Nagpur despite restrictions. Even dangerous crackers such as ‘sutali bombs’ are available in shops. The Nagpur bench of Bombay high court on Wednesday directed the police to seize stocks of firecrackers capable of producing noise exceeding 55 decibels (dB).