Farmers in states such as Punjab, Haryana, Maharashtra, Rajasthan, Karnataka, Uttar Pradesh and Delhi blocked railway tracks as part of their agitation against the Centre's three controversial farm laws.The Samyukta Kisan Morcha (SKM), an umbrella body of farmer unions which is spearheading the protest, had announced the rail blockade last week to press for its demand to repeal the legislations. The SKM had said the blockade will be held across the country from 12 pm to 4 pm.Farmers protesting a