The correct answer is: d) Any of the above
The Punjab Census is a census of the population of Punjab, India. It is conducted every 10 years by the Government of India. The census collects data on the population, including age, sex, religion, language, education, and occupation.
The census is conducted in multiple languages, including Punjabi, Hindi, and English. This is to ensure that all residents of Punjab can participate in the census and that the data collected is accurate and representative of the population.
Punjabi is the most widely spoken language in Punjab, followed by Hindi and English. The census data shows that the percentage of the population speaking Punjabi has declined over time, while the percentage speaking Hindi and English has increased. This is likely due to the increasing migration of people from other parts of India to Punjab, as well as the increasing use of English in education and government.
The census data is used by the Government of India to plan and implement development programs in Punjab. It is also used by researchers and academics to study the population of Punjab.