Which indices are used for calculating inflations?

Consumer Price Index (CPI):

Refers to the price index that measures the change occurred in the prices of consumer goods and services purchased by households over a period of time.

Wholesale Price Index (WPI):

Refers to the price index that is used to estimate the average change in the price of goods in the wholesale market. WPI is also known as Producers Price Index (PPI). It is different from CPI as the amount paid by consumers does not come directly to producers.