Social and Educational Survey, popularly known as the ‘caste census’ in Karnataka, began on Monday, though the exercise may be delayed by a day or two in the Greater Bengaluru area in order to impart training and ensure necessary preparations, officials said.

The survey by the Karnataka State Commission for Backward Classes that will go on till October 7, will see as many as 1.75 lakh enumerators, mostly government school teachers, covering around 7 crore people in approximately 2 crore households across the state. The survey, at an estimated cost of Rs 420 crore, will be conducted “scientifically,” with a 60-question questionnaire prepared for the exercise, according to officials.