What can a caste census tell us? | Number Theory

The next census will also enumerate caste data, as per a decision by the Union Cabinet on April 30. The last time the census did a caste count was in 1931. What exactly can a new caste census tell us? While it will provide a lot of information which was not available earlier, the broad contours of India’s caste composition are not exactly unknown. Here are four charts which explain this.