New Delhi, Sep 08 (ANI): Prime Minister Narendra Modi on Monday addressed a Dalit conference in New Delhi on the occasion of 152nd birth anniversary of Dalit icon Ayyankali, who hailed from Kerala. He said that no body in northern India would be aware of Ayyankali if this event was not organized in his memory. Modi added that Swami Vivekananda used to hate Kerala because he could not see wrong happening to Dalits which was a common practice in the state earlier.