Pension fund support services available for public teachers in the BRICS countries (Brazil, Russia, India, China and South Africa)

Goal: I need to answer these following questions for each of the BRICS countries: 1) Is pension funds available for public teachers? 2) Does teachers receive any kind of training or information regarding pension funds? 3) What is the financial support from Government as well as private institutions ? 4) Is there a law protecting educators in regard with pension funds? 5) Beginner teacher: Any specific support for example maternity leave and how much should a beginner educator contribute to pension funds? 6) Intermediate teacher: Is early retirement an option, and from what age? 7) Expert educator: What will this educator benefit from pension funds and is there corruption taking place?