Centre for Civil Society's concept note on Ease of Doing Business cites IDFC Institute's enterprise survey. Excerpts:
"Each year DIPP, NITI Aayog and the World Bank together assess the progress made by states against ease of doing business action items set the previous year. The assessment is based on self-declaration by state governments on recommendations they have implemented. This is made available on the BRAP portal and is then reviewed and validated by DIPP & the Bank. DIPP’s assessment from 2018 will consist of business-to-government feedback as well.
Separately, for its Doing Business Report, the Bank surveys lawyers and expert professionals to verify the claims around reforms and assess changes to the business climate in the country. The report surveys respondents familiar with the regulatory environment faced by private limited companies in the two largest business cities in the country (Mumbai and Delhi for India).
In addition, in 2017 the IDFC Institute conducted an enterprise survey of over 3,000 manufacturing firms across India, to assess the business regulatory environment ‘from the viewpoint of manufacturing firms’. It differs from the World Bank’s Doing Business Surveys and DIPP’s state rankings in that it focuses on how organised manufacturing firms, rather than experts or implementing agencies, view the business environment in their respective states."