I am getting conflicting reports about this.
India’s first ever annual inflation rate, based on the consumer price index (CPI), was 7.65 per cent for the month of January 2012, government data relased on Tuesday showed.
This seems to say that they started measuring CPI inflation only in Jan 2012
However, I also found this from 2009,
annual average CPI inflation is likely to remain at around 6.5 percent in 2009-10.
Macrotrends also gives CPI inflation for India from the 1960s - https://www.macrotrends.net/countries/IND/india/inflation-rate-cpi
If India didn't measure CPI before 2012, how does Macrotrend have data from 1960
Another confusing data point is here from 2010
In June, 2010, India's inflation based on the Consumer Price Index for Industrial Workers (CPI-IW) stood at 13.7 per cent, much higher than that of Indonesia, Brazil, China and Russia.
This however says CPI-IW instead of just CPI which adds another confusion - is CPI-IW different from CPI & how different?
So when did India actually start measuring CPI inflation?