The rate of inflation in India is measured generally in respect of movement of

The correct answer is Option 1: Consumer Price Index (CPI).

Historically, India used the Wholesale Price Index (WPI) as the primary measure of inflation. However, following the Urjit Patel Committee recommendations, the Reserve Bank of India (RBI) shifted to the CPI (Combined) as the key metric for its monetary policy framework in 2014. This shift occurred because CPI reflects the actual change in the cost of living for households, capturing the prices of services and retail goods that consumers directly pay for.

• Option 2: WPI measures price changes at the producer/wholesale level and excludes services, making it less representative of the common man's inflation.
• Option 3: This is a specific subset of CPI used for wage indexing in agriculture, not for general national inflation.
• Option 4: Money supply is a cause or driver of inflation, not a metric to measure the rate of price movement itself.

Thus, CPI is currently the standard benchmark for measuring headline inflation in India.