Signs that your clutch may need replacement include slipping or grabbing during acceleration, difficulty shifting gears, or a noticeable decrease in clutch performance.
To get accurate information about the recommended replacement interval for the clutch plate on your Royal Enfield Classic 350, I recommend referring to the owner's manual provided by the manufacturer. The manual will have detailed maintenance schedules and guidelines specific to your motorcycle model. If you don't have the manual, you can contact a Royal Enfield dealership or authorized service center for the most accurate and up-to-date information regarding clutch plate replacement intervals for your particular motorcycle model.