Delhi A Close Second, Followed By Tamil Nadu Chennai: Kerala is ranked No. 1 among the 21 major states (large in geographical area) in the latest composite Education Development Index(EDI) prepared for the primary and upper primary levels of schooling for 2006-07. Delhi comes second, followed by Tamil Nadu, Himachal Pradesh and Karnataka in the report, which was released by Union human resources development ministry in New Delhi on Friday. The report on the EDI was prepared by the National University of Educational Planning and Administration (NUEPA) based on the District Information System for Education (DISE), a comprehensive database on elementary education in India, which is had created in recent years.