Security arrangements have been stepped up and a strong vigil on the bursting of crackers beyond the permissible limit is being kept for Diwali. Kali Puja was observed in various parts of the State at temples and at community pujas. Marquees were put up to celebrate the festival in the city and its vicinity. Serpentine queues of devotees were seen since morning outside the famous Kalighat temple as well as the Dakhineshwar temple on the outskirts of the city, along the banks of the Hooghly river. Apart from deploying additional forces on roads and check points for vehicles, the city police have put in place a new surveillance system for keeping an eye on important locations in the city with the help of 400 High Definition cameras. Chief Minister Mamata Banerjee inaugurated this system on Friday at the Lalbazar police headquarters. The West Bengal Pollution Control Board has set up 26 mobile monitoring teams that will be deployed in the city and its adjoining areas to ensure that bursting of firecrackers does not exceed the permissible limit. Control rooms have been set up in its central office and also in the regional offices so that people can register complaints in case norms are violated. “The maximum noise level for bursting fire crackers in West Bengal continues to remain 90 decibel at a distance of five metres,” a release issued by the Pollution Control Board said. The Board has banned 89 crackers that were found to be exceeding this limit. An unmanned aerial vehicle will also keep a check on violations. Ms. Banerjee greeted people on Diwali through a social networking site. 26 mobile monitoring teams to ensure that bursting of firecrackers does not exceed the permissible limit New surveillance system with 400 HD cameras has been put in place