Toyota Motor Corp.'s Indian unit has nearly normalized vehicle production at its two factories in Bangalore, ending a lockout of workers caused by a labor dispute, officials said.

Several hundred workers who signed a document regarding discipline returned to work, although wage negotiations have yet to conclude, the officials said Monday. The Indian unit has 6,400 workers.

The automaker locked up the plants March 16, citing worker safety after almost a month of production interruptions due to sabotage by some union members amid the pay dispute.

The two plants, with a combined annual capacity of 310,000 vehicles, produce the Fortuner sport utility vehicle and other models.