Parliamentary privilege is the older of the two doctrines this page is concerned with — older than the Constitution, older than the Republic. It is the rule that lets a House of Parliament govern itself, protect its members, and refuse, in defined ways, to be interrupted by the courts.
1. The constitutional anchor: Article 105
Article 105 of the Constitution sets out the privileges of Parliament and its members. Two are textual and absolute: freedom of speech in Parliament (subject only to the Constitution and the rules of the House), and immunity from liability in any court for anything said or any vote given in the House or any committee. A parallel provision for State Legislatures lives in Article 194.
Beyond those textual rights, Article 105(3) preserves "other powers, privileges and immunities" of each House and its members — historically equated to those of the House of Commons at the commencement of the Constitution, until defined by Parliament itself.
2. Freedom of speech inside the House
Freedom of speech in Parliament is the keystone. It is wider than the right under Article 19(1)(a): a Member may say things on the floor that would attract liability outside it, and may not be sued or prosecuted for those words. The discipline that constrains this freedom is internal — through rules of order, the Chair, and the House's own committees on privilege and ethics.
The privilege of free speech in Parliament is not an indulgence to the Member; it is a protection of the proceedings.
3. Immunity from judicial process
The companion right is procedural. No Member shall be liable to any proceedings in any court in respect of anything said or any vote given in the House. The Supreme Court read this strictly in P. V. Narasimha Rao v. State (1998), and revisited the underlying logic in later decisions; the reach of the immunity, particularly where alleged conduct sits outside the four walls of the House, remains a live question.
4. Internal autonomy and the privilege power
Each House controls its own proceedings. It can punish its members for breach of privilege or contempt; it can, in defined circumstances, punish non-members for the same. The architecture is not unlimited — courts have repeatedly affirmed that fundamental rights are not extinguished at the door of the House — but it is real, and it is jealously guarded.
5. The codification question
The Constitution itself contemplated that Parliament would, in time, define its privileges by law. Parliament has so far chosen not to. Codification has been debated repeatedly: it would offer clarity to the press, to citizens, and to courts; it would also, the argument runs, freeze a doctrine whose strength lies in its responsiveness to circumstance.
6. Privilege in a constitutional democracy
The privileges of Parliament exist not for the benefit of the Member but for the institution. They are best read as the operating system on which legislative democracy runs — neither extra-constitutional nor untouchable, but indispensable to the work the House does. The two-volume reference traces this arc through Indian and comparative material; a recent interview with the work's author offers a public-facing summary of why the subject still matters.