For most students, finding the right topic is the first and toughest step towards the thesis completion. Your topic will define the scope of your research and will be the gateway of your success in the future. Look for a topic that keeps you interested and one that is relevant to the field you have chosen in your Masters. Also, refrain from topics that have been worked on before, since you cannot add anything new to the subject. On the contrary, if you pick an interesting new subject that gives you ample scope to research, you can make an outstanding thesis that will be remembered for quite some time.