Congress President and UPA Chairperson Sonia Gandhi launched the 'Ahimsa Messenger' Programme -- an initiative by the Centre to address the violence against women. "We know that making laws and policies is not enough; but we also have to implement them at the grass-root levels. The most fundamental issue is that the mindset and old thoughts of our society have to be changed. In this modern society, we must be ready to ensure equal rights for women; it is our responsibility and a challenge. What we want now is a social revolution to demolish all the walls of discrimination amongst women," said Sonia Gandhi.