Specific statistical reports by the government are unavailable to verify whether the Mamata Banerjee administration tripled farmers' income.
Media reports cite the 70th round of National Sample Survey (NSS) conducted during January to December 2013, and state the growth rates of real income of farm household across different states, with West Bengal's standing at a negative 1.3% growth rate from 2002-03 to 2012-13. They add that the state also recorded the second-lowest total farm income in India. The NSS report is currently unavailable.
The State Statistical Hand Book report of 2015 shows the Consumer Price Index (CPI) increased by 34.09% from 2011 to 2015, while agricultural income increased by 59.29% at the 2015 current prices over the same period. The average annual growth rate turned out to be 6.3% only. West Bengal experienced floods in 2015 and 2017. The government announced the Krishak Bandhu scheme in 2019, the annual aid of ₹5,000 to be paid to 72 lakh farmers of the state who own over one acre of land.
The estimation methodology of the figures cited during the budget speech is unclear. The same claim has been made by the party and Mamata Banerjee herself on multiple occasions over the years, while official statistical figures to reflect them are not available.