Members of the district unit of Tamil Nadu elementary school teachers federation observed a day-long fast here on Saturday in support of their seven-point charter of demands.

Led by A. Chelladurai, district president of the federation, they demanded the Central scale of pay for the secondary grade teachers. They also pleaded for scrapping of the contributory provident fund scheme and restoration of old pension scheme for the teachers.

N. Rangarajan, general secretary of the federation, said that the Centre should take immediate action to check commercialisation of education.

S. Easwaran, general secretary of All India primary school teachers federation, said that the State government should scrap the conduct of the selection test for recruitment of teachers.