There were a lot of people pulling hand-rickshaws back then. Hand rickshaws were abolished in his rule and bicycle rickshaws were provided in their place. Karunanidhi founded the Tamil Nadu Slum Clearance Board on September 1970 to build permanent houses for those living in slums. In 1973 that women were allowed to join the police force. On Independence Day and Republic Day, state governors had the right to hoist the national flag. At the national level, Karunanidhi voiced for right to hoist the flag to be given to the chief ministers. Thus, From 1973, the Central Government gave permission to all the Chief Ministers to hoist flags. He implemented the "Manu Needhi Thittam", which mandated district officials to set aside a day every week to hear public grievances, and set up grievance redress procedures.