Class 11 PS Theory Chapter 1 An Introduction PDF NCERT Solutions for Class 11 Political Science Theory. Chapter 1 An Introduction. PDF Download Free. PDF Download Free Chapter 1 An Introduction Chapter 2 Freedom Chapter 3 Equality Chapter 4 Social Justice Chapter 5 Rights Chapter 6 Citizenship Chapter 7 Nationalism Chapter 8 Secularism Chapter 9 Peace Chapter 10 Development NCERT Solutions for Class 11