Ans. Secularism is one of the most important topics for which you have well-prepared Class 10 Political Science Chapter 4 notes PDF. A Secular State is a nation where there does not exist any particular religion. Any religious discrimination is strictly prohibited by the constitution of that particular State. People of every religion can practise their religious activities freely. The concept of Secular State is based on restriction of domination of the majority over the minority. The word Secularism was added to the Indian Constitution by the 42nd Amendment Act in 1976. To ensure equality within religious communities, government intervention is allowed by the Constitution of India.