It is suggested by graduate schools and universities that you start with research at least 4 months before your doctoral thesis proposal. If the schedule for your proposal defence will be on May of next year, for example, you should start working on January. This is because unlike an undergraduate thesis papers, a dissertation is a lengthy piece of academic writing that should show your expertise in your chosen topic and should contribute to new knowledge in your field. Here are the suggested tasks to be complete per month:

Writing a thesis paper seems to be one of the most difficult assignments of all academic writings ever faced by a student. Basically, things that differ a thesis paper from an ordinary writing piece are very slight though cause its complication and that is why it so sophisticated.