The famous cartoonist R.K. Laxman, in this cartoon, is trying to convey an ironical perception of the double standards and hypocrisy some of us follow. A mother is complaining about the heavy bags that children are made to carry to school, but she hires another "child" servant to do the same without a wee bit of sympathy for the less fortunate child who has to work and earn a living.
This relates to the 2006 Child Labour Prevention Act that banned children under the age of 14 years from work, making it a punishable offence for those who employed these children. Unfortunately, 74% of child domestic labour today is under the age of 16. R.K. Laxman, in his cartoon, is pointing towards this very glitch and how the government has not taken adequate action to enforce this law.