Mr. Prakash is right. Why should you address a person by his caste. He/she should definitely be addressed by the name. Infact Caste is born out of the trade and skill people were capable and involved.
Further it has become the habit of makers of cinemas in India to abuse and ridicule Hindu religion and its caste and majority of Hindus enjoy the sequences not realising that, it is they being abused. In tamil films, this abuse and ridicule is rampant by the so called comedy actors mainly by Vivek and even people like Rajnikanth is a mute spectator. Formerly we had a Ace director having same mentality in K Balachander who though being born in brahmin community keep critising and take films on the brahmin community with his own imagination. But he is a star director in the minds of most tamil hindus. This is the fate of Hindu religion.
In contrast Muslims refer their religion more than their parents and themselves. Any humiliation to their religion is taken as theirs and they take to streets which though found condemnable but in realisation, justifiable.