chennai toyota kirloskar motor has started negotiations on wages with its internal workers union toyota kirloskar motor employees union tkmeuthe wage agreement once signed will cover roughly around 4000 union member employeessources said negotiations began this month and will take at least a months time before an agreement is reached between the two parties it is still not clear whether the agreement when signed will cover a period of one two or three years tkms wage agreements in the past have been valid only for about a year when contacted the tkm spokesman confirmed the newswage agreements are critical in the automobile industry and have often proved a flash point among management and workers the latest wage agreement to be signed was that of the renault nissan automotive india pvt ltd in chennai last week