"Unless and until you have authentic data on the poor how can the schemes meant for them succeed?" he said at a function organised to release his government's annual report for 2012.
The matter has been raised time and again at the National Development Council (NDC) meetings but the issue has remained unresolved, he said, adding, the Planning Commission had recently adopted the strategy to assess poverty on the basis of socio-economic and caste census.
The Bihar CM said the main reason behind the fluctuating rate of development in the country was mainly due to policy makers drawing plans for developed states and leaving underdeveloped states like Bihar to fend for themselves.
"The Centre is concentrating on island of growth and leaving vast chunk of states having poor infrastructure like Bihar and whose development indices are much below the national average.
"Inclusive growth cannot be achieved unless and until underdeveloped states like Bihar and others are given special emphasis in plans," he said, adding, this was the reason behind his strong pitch for grant of special status to Bihar.
He sought special strategies for states like Bihar that are below the national average in development indices and their condition is reflected through per capita income and per capita plan expenditure among others.
Kumar said he would try to organise these states to fight for their rights but denied that it would be aimed at building a grouping of politically important underdeveloped states.