What we should present in defence? I am going to present my thesis in the next week. I am in a confusion what I should present in the final defence (1 hour). How much into detail I should go. I have successfully given my pre-synposis. I am currently thinking about the thesis defence. To me it appears I should focus on my work rather than talking about others work. I have been told that in the defence there will be few members from other discipline. Taking this thing into consideration I think I should first convey the high level idea and then go into the detail. So that everyone in the panel have idea about my work.
Although this answer comes too late for OP, it may help others. If it is permitted at your institution, attend defense presentations of others before you must prepare your own.  As others have said in comments or answers, thesis and dissertation defenses are highly variable and depend on the customs of the country, the institution, and even the individual department.  Very best is to attend presentations of students whose committees are chaired by your own committee chair.
If you aren't able to attend a defense or two, try to talk to one or two people who successfully defended recently.
In either case, take notes, plan your defense, then review your plan with your advisor or committee chair.  They'll appreciate that much more than an open-ended &quot;What shall I do?&quot; type question.
A word of comfort: Your advisor or chair should never let you reach the stage of defending unless you are ready.  I know there are exceptions to that general rule, but your advisor wants you to succeed, not only for yourself, but also because an advisor looks bad when students fail.