MUMBAI: As Mumbai battles toxic air and thick blanket of fog due to fire at the Deonar dumping ground, a protest march has been organized on Wednesday to highlight the issue.The protesters will start the march from Panjrapole at 8.30am and go upto Chembur naka. The silent protest has been organized against the BrihanMumbai Municipal Corporation which is under fire over the issue.The BJP and Shiv Sena are engaged in a war of words over the fire at the Deonar dumping ground. BJP MP from Mumbai North East constituency Kirit Somaiya has demanded action against BMC officials, department of environment and politicians which he said were allegedly involved in the incident.Targetting Sena which holds the environment portfolio, Somaiya said, "There is a massive corruption regarding the dumping ground. Criminal cases should be registered against the guilty."In a swift rebuttal, environment minister Ramdas Kadam alleged a sabotage behind the fire incident and said it was aimed at defaming the Shiv Sena-ruled civic body.Parts of Mumbai have been engulfed in a thick blanket of smog since Thursday due to the fire and other reasons, turning city's air worse than Delhi.The smog had forced BMC to shut down 74 schools run by it in Central Mumbai's Deonar and Shivajinagar for two days last week as the smoke from the ground enveloped the area, causing breathing difficulties.The schools reopened on Monday.Deonar is one of the biggest dumping grounds in Mumbai and the amount of garbage has been increasing since years.