Communal Harmony means that people of different castes, sex, creeds and background live together in a society with peace and love amongst themselves. In a multi-religious, multiracial multilingual country like India, communal harmony is very important to enjoy the essential unity of culture amidst diversity. It is very important for physical, social and mental development of people. But now-a-days, communal harmony is facing challenges; sometimes due to religious hatred, communal violence or communal tensions turning into riots. Commural disharmony is created when a certain group of people belonging to a religion hates other religions. We should not think any other religion inferior or worse. We should respect each and every religion. Indian Constitution has also given everyone fundamental rights to practise their religions. But these types of tensions are sometimes politically motivated resulting in polarization of votes to the political parties. Majority of the political leaders openly canvass on the basis of castes and creeds. And the youth of India is the easiest prey of the political parties. They are used acordingly to provoke communal tensions. Social media is also playing an active role to affect one's religious feelings. As a responsible citizen,we should not believe these fake news or videos. And some other threats to communal harmony are economic differences, gender inequality, unemployment and crisis of national character. India is a secular country. Other countries don't want to see India prosper. So, indirectly they also sometimes try to ignite communal disharmony to disturb inner situation of India. But if each and every Indian is careful about themselves and understand the profit of communal harmony, it can easily be maintained. Government should enforce law and NGOs, various agencies, academic institutions should come forward to make people understand and feel the real meaning of it.