Greetings for the day!!
To identify whether your child is underweight, we need to know the height and age. Since that details are not provided in the above thread, we may not be able to identify if the child is underweight or healthy.
As far as children are considered, the activities of the child are more important. Make sure that your child is active through the day
If the child seems tired and weak, then need to take more interest in the food.
Next Steps
A balanced diet with nutritious food is crucial for the child to gain weight.
It is also important that healthy snacks like chikki, fruits, legume recipes are included in his diet
Health Tips
Try not to overfeed or force feed the child, as it may result in more difficulties