India follows a federal system of governance, which is defined by certain key characteristics. Let's analyze the options.
Step 1: Federal System of Governance.
India's federal system is based on the Constitution of India, which divides powers between the central government and state governments.
Step 2: Analysis of options.
- (A) Dual government: India has dual governance, with a central government and state governments.
- (B) Independent judiciary: India has an independent judiciary that acts as a check on the powers of the government.
- (C) Written constitution: The Constitution of India is written and outlines the structure of the federal system.
- (D) Dual citizenship: India does not allow dual citizenship; this is not a feature of the Indian federal system.
Step 3: Conclusion.
India does not permit dual citizenship, making the correct answer (D).