not able to start iMac

Hi kokateRavindra,

Your Mac is currently referencing this support article: If your keyboard or mouse won’t connect during Mac setup - Apple Support (CA)

It looks like your Mac is looking for a keyboard and mouse to use. If you have a wireless keyboard and mouse, make sure that they are fully charged and powered on. Or, you can use a wired keyboard and mouse instead if needed.

Hi,

Your iMac try to find wireless mouse and keyboard, however can' find them.

Are you using wireless mouse and keyboard to pair or do you switch on the mouse and keyboard?