Tata motors performance management system - how do they maintain their employees performance record?

I am pursuing my MBA in HR. So there is topic given to me on performance management of TATA Motors. So please provide me information on how do they maintain their employees performance record, what do they do to keeping the performance of their employee excellent, what methods of performance management the TATA Motor\'s follows

TATA Motors uses a performance management system wherein employees are evaluated on their performance on a 4 point scale. TML has a robust training department which enables TML to have a high performing team.

Every big company have a monitoring and tracking system to keep an eye on their employees. Such performance monitoring software are necessary to increase and keep productivity. For more details on productivity increasing and Performance Management Software.

I'm sure TATA would you a PMS similar to that of many international companies. I'd look global companies to see if similarities can be made to TATA. HRM Dissertations | Employee Engagement | Satisfaction | Supervisor | LMX | HRM Dissertations | HRM | Coca Cola | Human Resource | Strategic HRM
You could also search the TATA website to see if they mention any performance management tools and techniques deployed across the company.
Hope this helps.