Indian Polity Mind Maps by Pavneet Singh : The Ultimate Quick Revision Tool 

Cons:

The book serves as a revision tool that converts complex political concepts into visual flowcharts and mind maps.

• Constitutional development
• Preamble, Union & its Territory, Citizenship
• Fundamental Rights & Duties, DPSP
• President, Parliament, Prime Minister & Council of Ministers
• Supreme Court, High Courts, Judicial Review
• Governor, State Legislature, Panchayati Raj
• Constitutional & Non-Constitutional Bodies
• Emergency Provisions, Amendments, etc.

Faster Revision: A single mind map can summarize an entire chapter, allowing for a quick refresh just days before the Prelims or Mains.