The population of UP + undivided Bihar + WB = 420 million+ ( 37% of the country) GDP size for UP + undivided Bihar + WB = around 300 billion (17%) The GDP of the state of Uttar Pradesh was USD 128 billion last year out of the total GDP of India which was more in the region of USD 1.6 trillion. As such it was just 8% odd of the countryâ€™s overall GDP. However potentially it can be 15% if not 20% of the overall GDP. Bihar which was even further behind has moved forward significantly over the last 5-6 years. Still even after so much of the same the percapita GDP of Bihar is still less than 40% of the national average of USD 1500. Bihar grew 14% on average in last few years. However despite all this improvement the per capita GDP of BIHAR is still the lowest in the country. There is still a long way to go and state is on right path. WB - Population 9% but Industrial and GDP growth is minimal and no steps taken in last 1-2 decades. In fact, When our economic reform started in early 90's, WB had an excellent opportunity to outperform and reach Top 5 states but it failed and today, It's Per capita is 30% lower of the national average. Possible Top 5 to Last 5! Government of India should start form economic group, so that politics will not play important role and they reach national average. Today, we are USD 1.6 trillion (not 1.8 because of currency valuation). Having said that, from now onwards....we need every states to perform if we need to reach USD 5 trillion by end of 2020. The states like Gujarat, Mah, South and North India (Delhi, Pun, Har, HP) have their own limitation. They cannot grow 15% every year.