The quantum of punishment for the convicted will be announced later. The company's HR manager Awanish Kumar Dev had been murdered in the fire leading to 148 workers being arrested.
According to the company, the unrest erupted when a worker beat up a supervisor and the workers' union prevented management from disciplining the worker and blocked exit gates.
The plant is now functioning with new staff. Rajender Pathak, the counsel on behalf of the accused workers, said that they would be approaching the Punjab and Haryana High Court to challenge the convictions. At the end, over 100 people were injured.
A large contingent of police was deployed at the court on Friday as a precautionary measure. The issue went out of control and the workers immediately began attacking senior management during talks, while the workers' union maintained that its representatives were attacked first. His charred body was identified by a tooth implant. The court let off 117 people in the similar case.
On the 13 convicted, Grover said in a statement: "What is important to understand is that these 13 are the office-bearers of the union and the main leaders". "They (workers) have been implicated in the case and management witnesses have deposed against them because they stand for rights of workers". The prosecution said that the employee had slapped the superior. "The stand of Maruti is vindicated".
The workers were charged with murder, attempt to murder, arson, rioting with weapons, destruction of property and assault.