Internal Security is one of the most interesting topic during mains preparations. It is also a topic where one can get assured marks easily with relatively little efforts. Around 3–4 questions worth around 40 marks is asked in GS 3 every year. Moreover, its useful for other GS Papers as well. In Mains 2018, even an essay worth 125 marks was asked from here - Management of Indian Border Disputes.
Therefore, a holistic preparation
of this part of syllabus is crucial for success in the exam.