To make the interview as a cake walk, the only way is to be honest and truthful.  Since it is not easy an easy task to tell a lie or bluff to the interviewing officer.  As he is very much trained to catch the liars and everyday he is facing numerous persons telling lies. 

     The simple quote about SSB is "BE YOURSELF" since if we are truthful to the interviewer, then we will tell our answer boldly and confidently. The interviewing officer also expect the same from the candidates.  So we wont bluff and never stammer in our answer.  So better improve the qualities and social adaptability of the self to be a better citizen and good officer.  If we improve and train our self for the development of the officer like qualities, the interview will be cool.  Also, what the interviewing officer expect from the candidate is not be an all rounder or a well knowledged person, but a person who adapts to all situations can handle and work under pressure, can able to move with a group of people, have an eye over the world and national issues, can be able to give solution to the national issues etc.  So put yourself to these points and assess yourself