Two days after the killing of Allied Nippon Limited's assistant general manager in Sahibabad, the temporarily shutdown unit resumed work on Tuesday with heavy police security.
Forty-two year old Yogender Chaudhary was lynched by a mob of agitated workers on Saturday.
The company has issued show-cause notices to around 27 workers who were allegedly involved in the violence. A case was lodged against 27 and another 350 unidentified accused. Eight persons have been arrested.
Around 200 workers, including permanent and on contract, and other 200 administrative and senior officials returned to work on Tuesday.
"The work has begun in the unit and more workers are likely to return. But it is unfortunate that none of the state officials paid sympathies to the victim's family," said MS Chaudhary, vice-president HR.
The four workers were also named as accused for murder and rioting in the FIR lodged at Link Road police station remained absconding since the incident, police officials said.
"These four were identified on the roof top of the factory-building and were dancing after the incident. We identified them through the video-clips available," Chaudhary said.
Several workers who attended work on Tuesday and requested not to publish their names, said that the four accused led a group of 70-80 people and indulged in disruptive activities.
"Six of our teams are already searching for the four accused along with others named in the FIR," said Link Road station officer Avneesh Gautam.