Question

why did grandfather keep toto as a secret from grandmother​

Answer 1

Because he didn’t want her to know his secret

Answer 2

Toto’s presence was kept a secret from grandmother because he did not approve of any addition to the already existing pets the grandfather had. So, Toto was kept in a closet that opened into the narrator’s bedroom wall and was tied to a peg fastened into the wall. However, the monkey managed to escape, tearing off the wallpaper. Later, he was put in a big cage in the servant’s quarters, where he troubled all other animals living there. He was even taken along by the grandfather to Saharanpur in a bag. Eventually, he got accepted by the grandmother and was given home.

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