Step 1: Picture the situation.
Imagine more people working on the same job than that job actually needs, where everyone looks busy but some of them are not really adding anything extra to the result.
Step 2: Define the idea using that picture.
This is called disguised unemployment, since the unemployment is hidden behind the appearance of work rather than being obvious like someone sitting idle with no job at all.
Step 3: Apply it with a simple example.
If a small farm needs only three people to manage it properly but five family members work on it every day, the extra two are not increasing the harvest at all, and removing them would not change the output, so those two are disguisedly unemployed.
Step 4: State the final point.
This is why disguised unemployment is common in Indian agriculture, where families keep working together on limited land even though the actual labour needed is much smaller than the number of people working on it.