10 Important Sociology Books For UPSC (IAS) and State Civil Services
Sociology Books For UPSC: To start with one should go for NCERT Books (class 11th and 12th), NIOS Material on Sociology and Selected IGNOU material for specific topics.
The Preamble to the Constitution of India (Till 42nd Amendment)
The Preamble to the constitution represents the basic philosophy and fundamental values on which the constitution is based. It is an Introduction or key note to the constitution.