According to the 2011-12 data, which of the following Indian states reduced the poverty levels to a great extent?

West Bengal

During 1973- 2012, many Indian states reduced the poverty levels to a considerable extent. Yet, the poverty levels in four states - Odisha, Madhya Pradesh, Bihar and Uttar Pradesh are still far above the national poverty level. You may notice Andhra Pradesh, Rajasthan, West Bengal and Tamil Nadu reduced poverty level much better than other states.