Other than agriculture, in which sectors can underemployment occur?

Other than agriculture, in which sectors can underemployment occur?

Answer.
Underemployment can also happen in other sectors.
There are thousands of casual workers in the service sector in urban areas who search for daily employment. They are employed as painters, plumbers, repair persons and others doing odd jobs. Many of them don’t find work everyday. We also see other people of the service sector on the streets pushing a cart or selling something where they may spend the whole day but earn very little. They are doing this work because they do not have better opportunities.