Union Ministers Dr Jitendra Singh and Vijay Goel along with other BJP leaders staged a protest march in New Delhi today against targeting of the party workers in Kerala. Talking to reporters, Dr Singh alleged that the violence by the Left parties in Kerala is a blot on democracy. <br/><br/>He said the BJP protest is aimed at preserving the Gandhian principle of non-violence and democratic values. The leaders marched from Delhi BJP office towards CPI(M) office in the city.