No, demat charges do not appear on the contract note. A contract note contains only trade related details such as your order number, traded value, traded quantity etc.
Demat charges can be found on your monthly bill that you receive from Upstox. These are sent to your registered email addresses mentioned by you.
In case you are an Upstox customer and wish to see your demat charges, you can check your monthly invoice or simply write to us at firstname.lastname@example.org