Answer:
Communalism is described as an ideology stating the division between states (people, groups of people or communities) on the basis of ethnicity, religion, beliefs, values, etc. The difference of two or more religious, ethnic and social communities can sometimes produce clashes in the society. Communalism is an important topic for the IAS Exam, from the perspective of social issues in Indian society. Since questions from this topic in Mains GS-I and Essay have been asked before in UPSC exam and can be asked in upcoming exam, it becomes imperative for an aspirant to learn about the relevant facts about Communalism.