The police believe the incident cannot be taken as a spontaneous reaction because a preliminary assessment revealed that the attack on police teams were planned and organised.
Kunnathunad MLA P V Sreenijin has said the Kitex Group cannot shy away from taking responsibility for the incident.
According to local residents, an argument over reciting carol escalated into a fight around 11.30 pm.
Police are not ready to take the incident lightly as it's for the first time that migrant labourers have taken to the streets in large numbers and even dared to attack police.
A few labourers in an inebriated condition came to the streets and clashed during Christmas celebration on Saturday midnight.
The accident occurred around 6.30 am when the car in which Swapna, a homeopathic doctor by profession, was being rushed to a private hospital by her husband.