Archive · 18 Dec 2025
IIT Bombay Report Defends Current Housing Index Methodology
IIT Bombay has released a report saying that the current way of collecting data for housing prices is good enough.
The government wants to change it to collect data every month from all houses, but IIT Bombay says this will cost more money and won't give much better information.
They think the current method, which collects data every six months from a smaller number of houses, is better.
The report also says that some of the proposed changes, like including rural areas and using older census data, could be helpful for making policies.
The current method is used to measure how much people spend on housing, which is a big part of the overall price index used to understand inflation.
IIT Bombay report argues against MoSPI's proposal to collect monthly housing data from all dwellings.
Current method uses a panel-based six-month moving survey of 4,000 dwellings per month.
Proposed method would increase cost and respondent burden without significant information gain.
Housing service accounts for 10.07% of overall CPI and 21.67% of urban CPI.
Some proposed changes, like expanding to rural areas, are noted as beneficial for policy making.
- Who
- IIT Bombay, Ministry of Statistics and Programme Implementation (MoSPI), Reserve Bank of India (RBI)
- What
- Debate on housing index compilation methodology
- When
- December 18, 2025
- Where
- India
- Why
- To revise the Consumer Price Index (CPI) base from 2012 to 2024
- Report Authors
- Praggya Das, Ashish Das
- Current Method
- Panel-based six-month moving survey
- Proposed Method
- Monthly data collection from all dwellings
- Housing Weight in CPI
- 10.07% overall, 21.67% urban
- Sample Size
- 25,000 dwellings
- Current Sample Size
- 4,000 dwellings per month
- Proposed Changes
- Expand to rural areas, use Census 2011 data, drop employer-provided residences, release state-level indices