Social activist Yogendra Yadav on Tuesday said if 'mandis' are closed due to the Centre's new agri laws the farmers of Punjab and Haryana will be ruined as the government would no longer procure their crops. Addressing a 'Kisan Mahapanchayat' organised by United Kisan Morcha in Rajasthan's Sikar district in support of the ongoing farmers' agitation against the agri laws, …