Which punctuation mark is used to write someone's spoken words or statement exactly as they were said?

To enclose the exact direct speech or statement of a person without making any changes, quotation marks are used. In Hindi, these are known as उद्धरण चिह्न (Uddharan Chihna), which can be double ($"..."$) or single (${}^{\prime }..{.}^{\prime }$).