kolkata the use of fire extinguishers by unidentified people aimed at the crowds outside nazrul mancha on wednesday has sparked a controversy several video images are being circulated on social media blaming the authorities for it however it is still not clear who did ittmcp state president trinankur bhattacharjee said the incident took place outside the auditorium there were many young people who could not get inside and it was done by some of them this could cause bronchial spasms in such cases for normal people this will immediately trigger cough a tingling sensation irritation and shortness of breath pulmonologist debraj jash saidrg kar forensic head somnath das said if people are exposed to carbon dioxide for long long it will pose problems and discomfort inhaling them will lead to irritations and in people with medical history of breathing problems it could be severethe issue snowballed with cardiac surgeon kunal sarkar taking to social media to post the incident in which he questioned why fire extinguishers were sprayed on people