Explanation:

Three opposition ruled states --West Bengal, Kerala and Odisha -- have opted out of the Centre's Transformation of Aspirational Districts scheme, thus reducing the total number of districts under the programme to 102 from 115.While the West Bengal is ruled by All India Trinamool Congress (AITMC), Kerala and Odisha have CPI-M and BJD governments, respectively. “These three states (West Bengal, Kerala, and Odisha) have opted out of the programme.The three states have objected to the criteria set up by the centre for identifying backward districts without taking states into confidence. The Centre has embarked upon a major policy initiative for rapid transformation of districts that are lagging on specific development parameters.