This definition appears somewhat frequently
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The Current Inflation Rate, updated monthly- This table shows the current rate of inflation to two decimal places using the CPI index.
Inflation Definition: Inflation is the percentage change in the value of the Wholesale Price Index (WPI) on a year-on year basis.
This necessarily introduces distortion, and can lead to legitimate disputes about what the true inflation rate is. This problem can be overcome by including all available price changes in the calculation, and then choosing the median value.  In some other cases, governments may intentionally report false inflation rates; for instance, the government of Argentina has been criticised for manipulating economic data, such as inflation and GDP figures, for political gain and to reduce payments on its inflation-index.