The Communist Party of India-Marxist's district office in Thiruvananthapuram was stoned on Sunday evening, a day after City Mayor VK Prasanth suffered injuries in a scuffle between CPI (M) and BJP councillors.
Windowpanes of the CPI (M) office were broken and other property damaged in the stone-throwing incident. Skirmishes were also reported between CPI (M) and Bharatiya Janata Party/Rashtriya Swayamsevak Sangh workers near the Thiruvananthapuram airport and in Kannur district.
While two CPI (M) youth wing activists were attacked near the airport, a local party leader was attacked at Iritty in Kannur.
The CPI (M) has called for a protest in the district on Monday.
Tourism Minister Kadakampally Surendran and Thiruvananthapuram district CPI (M) Secretary Anavoor Nagappan blamed police for failing to act in time.
"The BJP and RSS are trying to create unrest and acting in a violent manner, especially in the state capital. It was a planned attack and the Mayor was lucky to escape. It was an attack on his life. The police are yet to arrest anyone," said Surendran.
Former Mayor and senior CPI (M) leader V Sivankutty said the attack was planned by the BJP to create unrest.
Prasanth is convalescing at the Medical College Hospital here and nursing an injury on the forehead, apart from having a leg in plaster.
"The attack was a planned one and it included not just BJP councillors but also others who came from outside," Prasanth claimed on Sunday.
Chief Minister Pinarayi Vijayan and other senior Left leaders visited the Mayor in the hospital.
"The RSS stage managed this attack and had the Mayor not been given timely medical care, things would have been very bad," said Vijayan.
Thiruvananthapuram district BJP President S Suresh said the statements by Left leaders and police are "nothing but a joke".
"What happened in the council on Saturday was the attack unleashed by the CPI (M) councillors and the Mayor himself. There are visuals in our support. The Mayor is faking injuries. If he were injured, how could he walk away from the spot where he fell. The Mayor is trying to create a smoke screen by weaving baseless stories on the attack," Suresh told the media.
Police have registered a case against 20 persons for the ruckus at the council hall on Saturday.
In the 100-member Thiruvananthapuram Municipal Corporation, the BJP is the principal opposition party.
(With IANS inputs)