How can we create email and message both types of chennel in same tickets? Is it possible? If yes, then how?

Hi Ronak,

You can only switch channels when working on tickets in agent workspace. Because of this flexibility, the ticket composer includes some rules (logic) for channel switching within a ticket. This logic controls which channels are available to you when you send a reply. You can check this article for details.

You can use the channel menu to switch channels manually in the composer. See Switching channels in the composer.