Answer:
Swami said that his grandpa is affectionate.
Step-by-step explanation:
Change of narration or narrative voice refers to the change in the speech. This is also known as direct to indirect speech or vice versa, whichever one is applicable or asked for.
In the given sentence, the speech is given in the direct voice, with Swami being the speaker of the speech "my grandpa is affectionate."
To change this into the reported or indirect form, we replace the personal pronoun "my" into the pronoun of the subject which is "Swami". Therefore, the sentence becomes-
Swami said that his grandpa was affectionate.