New Delhi, Oct. 28 -- Union agriculture minister Shivraj Singh Chouhan on Monday urged the Indian Council of Agricultural Research (ICAR) to introduce a grading system for agricultural universities and colleges to ensure greater quality and accountability in agricultural education. Drawing a comparison with engineering and medical fields, he said agricultural studies must be pursued with equal seriousness and professional rigour, as "the nation's food security depends on it." Addressing a gathering of agriculture students and faculty at the Indian Agricultural Research Institute (IARI), New Delhi, Chouhan said the time has come to introduce a grading system for agricultural universities to assess teaching quality and encourage healthy compe...