Here's a breakdown:
* Balak is the singular form of the noun, meaning "child".
* Bala is the singular form of the noun in the shabad roop (case form), specifically the nominative case.
Shabad roop is a grammatical concept in Sanskrit and related languages, where nouns and pronouns change their form depending on their function in a sentence.
For example:
* Balak (child) is the nominative singular form.
* Bala (child) is the nominative singular form in the shabad roop.
* Balakan (child) is the accusative singular form.
The shabad roop of a noun changes depending on its role in the sentence, such as subject, object, or possession.