Union representatives had conducted several rounds of discussions with KSRTC management and officials of the state government demanding a hike in wages.
Traffic was disrupted for nearly 30 minutes as the two sets of comrades clashed in broad daylight.
As per the report in a section of the media, headload workers belonging to the union asked for excess money to unload the vaccine boxes and refused to unload it until they were paid the amount they demanded.
According to statement protest day to be observed through massive demonstrations/mobilizations at the workplaces, and industrial centres/areas and also burning the copies of the Labour Codes.
As the left government in Kerala supported the strike, almost all the government offices remained closed and vehicles were off the road. Most of the shops and business establishments remained shut.
CITU national general secretary K Chandran Pillai said the general strike will be complete in almost all sectors.
The doctors and other staff unloaded the 225kg-biosafety cabinet from the lorry and carried it to the TrueNAT laboratory on the top floor of the hospital.
The meetings, held in violation of the government's guidelines, has drawn flak from health care givers.
Alexander's vehicle was nearing his office, when a stone landed on it breaking the windscreen and causing injuries to the back side of his head.
The management has also assured that no disciplinary action would be initiated against those who participated in the strike.