Structure of the database
The districts in each state of the country have been
time to time based on political, socio-economic, linguistic and other factors.
313 districts in the 16 states in 1966 (excluding northeastern states (except
Jammu and Kashmir).
By 2015 four new states were created from the 16 states to
20 states and the number of districts in the 20 states increased to 571. To
ensure continuity in the database for time series analysis and for spatial and
analysis using GIS maps, a methodology was devised for apportioning the data of
formed districts back to its parent district, i.e., 1966 district boundaries.
Thus, the database is divided into two datasets: Apportioned
with 1966 district boundaries and unapportioned database with current district
(in our case upto 2015-16). The apportioned database includes data from 1966 to
while the unapportioned database spans 1990 to 2015-16.
The data on environment variables (AET, PET, PPT, etc) is
only for unapportioned data from 1956 to 2015. Besides the two data sets, another
variables are included under ‘Additional data’, and includes data files on season
crop area and production, break up of fruits and vegetables area and production
night lights, agricultural credit etc. These data are unapportioned and the years
are for recent years and are also not uniform across data files.