Communication is a two way process, do you agree?

Absolutely! True communication involves two or more parties; a sender and a receiver. By doing this, there will be transmitter; an input and output .  It can only be those things if all the people involved are that way themselves. Otherwise, the one way process will just be perceived as giving out information or just listening -- and not full communication.

Communication is always two ways ways: the encoder (Sender) and the decoder (Receiver). The sender of information encode a message and the receiver decode the message.

YES I AGREE THIS BECAUSE COMMUNICATION IS INVOLVE WITHIN TWO PERSONS.

No.

Ask any radio presenter.  Or novel writer.  Or university lecturer.

In some circumstances communication can be improved if it is seasoned with relevant communication in the other direction.

It is a channel of sending message from a sender to a reciever