The Governor conveyed his concern to senior BJP leader and MLA O Rajagopal, when he brought the matter to the former's notice, a party release said here.
The Governor also informed that he had asked Chief Minister Pinarayi Vijayan to take steps to end political violence in the state when they met at Rashtrapathi Bhavan during Onam celebrations last week, Rajagopal said.
Meanwhile, hundreds of BJP activists took part in a protest march against the attack.
BJP national executive member P K Krishnadas said the party would submit a memorandum to the Governor on September 15 highlighting the alleged "fascist" attitude of the CPI(M) led LDF government in the state.
No one was injured in the attack.
Meanwhile, CPI(M) denied BJP's charge and condemned the attack and wanted the government to arrest the "anti-social" elements behind the attack.
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