Of the 148 accused, 117 were acquitted of all charges, while the quantum of punishment for the remaining 31 will be announced on March 17.
Of them, 13 have been convicted of murdering Awanish Kumar Dev, 49, then general manager (human resources) who hailed from Ranchi.
On July 18, the violence started when a worker Jiya Lal was suspended for allegedly slapping a supervisor.
The plant is now functioning with new staff.
Military hospital in Kabul attacked
The incident underlines warnings by government officials that high-profile attacks in Kabul are likely to escalate this year. The government's chief executive officer, Abdullah Abdullah, addressed the ceremony for Fahim shortly after the attack.
The Maruti Suzuki Workers Union said it would be present at the district court on Friday. At the end, over 100 people were injured.
More than 30,000 workers boycotted their meals on Thursday and warned of "further action" if their colleagues "did not get justice".
The judgment was passed by the Gurugram District court on Friday. "We also hope the rest of the workers will be released soon". He was identified from a tooth implant.
Maruti Suzuki's Manesar unit had not churned out a single vehicle for over a month after the violence. The court let off 117 people in the similar case. He said it was not proved who set the office on fire and what the cause of fire was. Public prosecutor Anurag Hooda, however, said it was a very serious crime. "The stand of Maruti is vindicated". The plant witnessed three strikes by the workers in 2011, who were demanding that they be given their trade union rights. "The evidence provided will not stand the scrutiny of the high court", Grover said. A criminal conspiracy was hatched on July 18 afternoon (2012), when the workers were asked in the first shift to not return home, but to continue assembling in the plant.