As per the definition of Census of India, a ‘marginal worker’ is a person who works for:

Correct option is A

The correct answer is (a) Less than 183 days (or six months) in a year.

According to the Census of India, a marginal worker is defined as a person who has engaged in any economically productive activity for less than 183 days (or six months) during the reference year. This classification distinguishes marginal workers from main workers, who have worked for 183 days or more in the same period.

Additional Information:

• Main Workers: Individuals who have worked for the major part of the year, i.e., 183 days or more, are categorized as main workers.

• Non-Workers: Persons who have not engaged in any economically productive activity during the reference year are classified as non-workers.