The conversation segment 'Bindu : _____ is like yours.' requires a possessive pronoun as it is at the beginning of a sentence referring to Bindu's garden, and 'yours' is also a possessive pronoun. 'Mine' is the correct possessive pronoun for 'I'.
Class 6 › English Grammar and Composition › Chapter 4: Possessives › Topic: Activity 2: Completing a conversation with possessive adjectives and pronouns
Aligned to the NCTB national curriculum.