Usage of la in this example

Question

Est-ce ta trousse ? - Oui, c'est la mienne.
Is this your pencil case? - Yes, this is mine.

In the above example, how is la used?

From my knowledge, le/la/les can be used for the following reasons:

1. to say 'the' as a definite article
2. to generalize (la vie est compliquée - life is complicated)
3. as a direct object pronoun (le - him, la - her)

does the usage of la come under any of the above categories or is it used in a new way that i must learn?

Cécile Janty-Davies · Accepted Answer

Bonjour Dheeraj,
Take a look at the following lesson for the use of possessive pronouns as 'la mienne' -
Le mien/le tien/le sien/etc = Mine/yours/his/hers/its (French Possessive Pronouns)
Hope it helps!

Jim Jones · Answer

Salut Dheeraj,La -- this is the definite article before a feminine noun. This is a reference to La trousse  --  Oui c'est la mienne (it is that of mine), where mienne is the possessive pronoun relating to ownership of la trousse  (that is, your trousse)I hope this helps.Bonne continuation Jim