Hoping to make themselves heard in the power centre of the nation, thousands of farmers who have converged here from across the country on Thursday began a two-day protest, backed by the Left, to press their demands including debt relief and remunerative prices for their produce. The farmers, who converged at Ramlila Ground here and will march to Parliament Street on Friday, came from different corners of the country, including Andhra Pradesh, Gujarat, Madhya Pradesh, Maharashtra, Tamil Nadu, West Bengal and Uttar Pradesh.