Why this matters now

The salient features are foundational GS-2 content — frequently tested and a framework for understanding the whole Constitution.

Lengthiest
Written constitution
Quasi-federal
Nature
Parliamentary
System
Secular
State

Key features

  • Lengthiest written constitution in the world;
  • Blend of rigidity and flexibility (varied amendment procedures);
  • Federal system with a unitary (centralising) bias — “quasi-federal”;
  • Parliamentary form of government (Westminster model);
  • Integrated and independent judiciary with judicial review.

More features

  • Fundamental Rights, DPSP and Fundamental Duties;
  • Secular state and universal adult franchise;
  • Single citizenship;
  • Emergency provisions;
  • Independent bodies (ECI, CAG, UPSC);
  • A three-tier government (with the 73rd/74th Amendments).

Nature of the Constitution

The Constitution is often called “quasi-federal” (K.C. Wheare) and “federal in form but unitary in spirit” — it is federal (division of powers, written, supreme, judiciary) yet has strong centralising features (single citizenship, all-India services, emergency provisions, the Centre’s overriding powers).

UPSC angle

Know the salient features — lengthiest written, rigidity+flexibility, federal-with-unitary-bias (quasi-federal), parliamentary, integrated judiciary, FR/DPSP/FD, secular, single citizenship, independent bodies.

Frequently asked questions

What type of constitution does India have?

The world’s lengthiest written constitution, federal in form with a unitary bias (quasi-federal).

Why is the Constitution called quasi-federal?

It is federal (division of powers, supremacy, independent judiciary) but has strong centralising features.

What system of government does the Constitution establish?

A parliamentary form of government on the Westminster model.

What is the blend of rigidity and flexibility?

Some provisions need a special majority (rigid) while others can be amended by a simple majority (flexible).