Yes, Indias South Multi Pink Slate can be used in a bathroom. Slate is a durable and water-resistant material, making it suitable for wet areas like bathrooms. However, it is important to properly seal the slate to prevent water damage and staining. Additionally, the surface may be slightly textured, which can aid in slip resistance. It is always advisable to consult with a professional or supplier to ensure proper installation and maintenance of the slate in a bathroom setting.