get you documents correctly.
.also if u are graduate in whatever stream..get your basics brushed up..also cpl holders expect question about tech. general and other subjects. I being a graduate in physics had to face few questions in it too..
be confident about your answers and do not lie anything..
..the interviewers are good and they make you comfortable....
try to be well dressed..if u r not comfortable in wearing a suit pls dont be urself however a tie will add to your impression.
wish all the best to all the candidates appearing in cheenai , delhi and banglore..