The NITI Aayog released the Second Delta ranking for the Aspirational Districts which measures the incremental progress made by them between June 1, 2018 and October 31, 2018, across six developmental areas of Health and Nutrition, Education, Agriculture and Water Resources, Financial Inclusion, Skill Development, and Basic Infrastructure. The ranking factors in validated data from Household Surveys conducted by NITI Aayog’s knowledge partners, namely, TATA Trusts and Bill & Melinda Gates Foundation (IDInsight). The Surveys were carried out in all Aspirational Districts during the month of June 2018 covering more than 1,00,000 households. These surveys were used to validate critical data-points and provide inputs for nine further data-points for which district-level data is not readily available at regular intervals.