Each sitting day of the Indian Parliament begins with two distinct periods of questioning. The first hour — Question Hour — is governed by formal Rules of Procedure with specific notice periods, question types, and supplementary procedures. The second period — Zero Hour — is an Indian innovation, named for its 12:00 noon start, with no formal procedural framework. Together, these two hours make ministers face their parliamentary critics on a daily basis. The question system is one of the most institutionalised mechanisms of parliamentary control over the executive. Understanding how the questions work — three types, two hours, four categories of admissibility — is essential for the Prelims.
Question Hour — first hour, ten-day notice
Question Hour is the first hour of every sitting day of the Lok Sabha (10:00 to 11:00 AM) and the Rajya Sabha (12:00 to 1:00 PM). The hour is exclusively reserved for asking and answering questions of ministers. Other parliamentary business — Bills, motions, debates — does not take place during Question Hour.
The formal procedure: a member who wishes to ask a question must give written notice. The minimum notice period is 15 days; the maximum is 21 days. The notice must specify whether the question is starred (oral answer) or unstarred (written answer). The Speaker (or Chairman in the Rajya Sabha) decides admissibility based on the Rules of Procedure.
The Rules contain detailed admissibility criteria. A question is inadmissible if it: contains arguments or imputations; raises matters under judicial consideration (sub judice); seeks information about matters of policy already decided by the government; refers to character or conduct of judges or chairs of constitutional bodies; involves matters not within the minister's area of responsibility; or repeats a question already answered.
Each member is entitled to a limited number of questions per day. The Lok Sabha has a cap of one starred question per day (with a higher number of unstarred). The Rajya Sabha has similar caps. The system enforces equitable distribution of questioning opportunities across the membership.
Three types of questions — starred, unstarred, short-notice
Starred questions (marked with an asterisk in the printed list) are answered orally on the floor of the House. After the minister's reply, supplementary questions can be asked by the original questioner and other members. The supplementary mechanism allows real-time interrogation — the minister has to think on their feet. The number of starred questions admitted on a particular day is limited to about 20 in the Lok Sabha to allow time for supplementaries.
Unstarred questions (no asterisk) receive written answers. The text of the question and the minister's written reply are laid on the table of the House and printed in the parliamentary record. There are no supplementary questions. The volume of unstarred questions per day is much higher — typically 200-300 in the Lok Sabha — since each does not require oral time. Unstarred questions are useful for routine factual information; starred questions are useful for matters that warrant follow-up.
Short-notice questions are matters of urgent public importance that cannot wait for the standard 15-21 day notice. The notice period is shorter — at the Speaker's discretion — and acceptance requires the consent of the minister concerned. Short-notice questions are answered orally and supplementaries can be asked. The mechanism is used sparingly because it disrupts the planned schedule of Question Hour.
The choice of question type matters. A starred question that becomes a written answer (because the original questioner is absent) loses the supplementary opportunity. A factual matter posed as starred wastes the supplementary opportunity. Skilful members choose carefully to maximise scrutiny effect.
Suspension of Question Hour
Question Hour can be suspended in specific circumstances. The Speaker can suspend it for a particular sitting if the House is to be addressed by the President of India, by a foreign dignitary, or for some other special purpose. A no-confidence motion or other major debate can result in the suspension of Question Hour for that sitting.
During the COVID-19 pandemic in 2020, Question Hour was suspended for the entire Monsoon Session of Parliament — a controversial step that drew criticism from the Opposition. The suspension was justified on grounds of compressed sitting time and the need for emergency legislation. Critics argued that suspending parliamentary questioning during a national crisis defeated the purpose of parliamentary accountability when it was most needed.
Question Hour also does not take place on the first day of a new Lok Sabha (the President addresses both Houses jointly), on the day the Budget is presented, and on certain ceremonial occasions. The mechanism is robust but not absolute.
Zero Hour — the Indian innovation
Zero Hour begins at 12:00 noon — immediately after the end of Question Hour in the Lok Sabha and at the start of the Rajya Sabha sitting day. The name "Zero Hour" comes from the 12:00 noon start, which on the parliamentary clock is "zero hour" between the morning and afternoon halves of the day.
Zero Hour is not formally recognised in the Rules of Procedure — neither the Lok Sabha's nor the Rajya Sabha's Rules contain any provision called "Zero Hour." It is an Indian parliamentary innovation that emerged in the 1960s. Members began raising matters of urgent public importance at 12:00 noon without prior notice; the practice consolidated over time into a recognised parliamentary mechanism.
The procedure: members who wish to raise a Zero Hour matter give notice to the Speaker (or Chairman) before 10:00 AM on the day of the proposed Zero Hour intervention. The Speaker selects from the notices received and permits members to raise their matters in turn. Each Zero Hour intervention is brief — typically 2-3 minutes. The minister concerned may respond, but is not obliged to. There are no formal supplementaries. The mechanism is for raising matters, not for compelling answers.
Zero Hour's advantage over Question Hour is flexibility. A matter that arose overnight — a natural disaster, a security incident, a political development — can be raised in Zero Hour without waiting 15-21 days. Its disadvantage is that ministers can avoid responding without procedural penalty.
Zero Hour duration varies. Typically 30-60 minutes in the Lok Sabha; longer in the Rajya Sabha because it starts at the opening of the sitting. The Speaker has discretion to extend or curtail Zero Hour based on the matters raised and the importance of the day's other business.
Question Hour vs Zero Hour — the comparison
The two mechanisms differ across multiple dimensions.
Notice period: Question Hour requires 15-21 days notice; Zero Hour requires same-day notice (before 10:00 AM).
Procedural framework: Question Hour is governed by formal Rules of Procedure; Zero Hour is governed by parliamentary practice without formal codification.
Compulsion to answer: In Question Hour, the minister is procedurally required to answer (orally for starred, in writing for unstarred). In Zero Hour, the minister may respond but is not obliged to.
Supplementary questions: Question Hour (starred) allows supplementaries; Zero Hour does not.
Subject scope: Question Hour questions must concern matters within the minister's area of responsibility; Zero Hour can raise any matter of urgent public importance, regardless of departmental boundaries.
Time of day: Question Hour is the first hour of the sitting; Zero Hour is the period immediately following.
Constitutional/Rule-book basis: Question Hour is Rules-based; Zero Hour is convention-based.
The two mechanisms are complementary. Question Hour provides scheduled, formal scrutiny on planned topics. Zero Hour provides immediate, informal scrutiny on emergent matters. Together they ensure that the executive faces parliamentary questioning across the spectrum of issues — from long-planned policy questions to overnight crises.
Comparison with other parliamentary systems
The Indian Question Hour is borrowed from the British model with adaptations.
United Kingdom — Prime Minister's Questions (PMQs). The UK House of Commons has a Question Time at the beginning of each sitting (Mondays to Thursdays), with each minister scheduled for questioning on a roster basis. PMQs is a 30-minute session every Wednesday in which the Prime Minister personally answers questions. PMQs is highly televised and is one of the most-watched parliamentary mechanisms in the world. India's Question Hour does not have a dedicated Prime Minister's Questions slot — the PM is questioned within the general framework when their portfolio is the subject.
Canada — Question Period. The Canadian House of Commons has a daily Question Period of 45 minutes. Members ask questions of ministers without prior notice. Each Member can ask a question and a supplementary, then the next Member is called. The format is more informal than India's but more confrontational than the UK.
Australia — Question Time. Similar to the UK and Canada — daily, formal, televised. The Australian system has a strict practice of "Dorothy Dixer" questions (planted questions from government backbenchers) which has been criticised but persists.
United States — no equivalent. The US Congress does not have a Question Hour. Cabinet members do not address Congress regularly. Congressional oversight of the executive is conducted through committee hearings, which are scheduled and substantive but lack the daily public scrutiny of the parliamentary Question Hour model.
India's combination of Question Hour and Zero Hour is more flexible than most other systems. Few parliamentary systems have a Zero Hour equivalent; the Indian innovation has been widely admired even though it is informal.
Effectiveness — what questioning actually achieves
The question system's effectiveness depends on multiple factors.
Disclosure of information. The most direct effect is that information is brought into the public record. Ministers must disclose facts that they might prefer to keep internal. Even formulaic answers create a parliamentary record that can be consulted later.
Pressure on the bureaucracy. Civil servants prepare ministerial answers. The preparation process forces departments to compile information, take positions, and anticipate further questions. The cumulative pressure shapes administrative behaviour even when no individual answer changes policy.
Public scrutiny. Parliament is broadcast live. Question Hour creates a daily ritual of public accountability. Members of the public, journalists, and political opponents can see ministers being questioned in real time. The reputational stakes encourage minister preparation and discourage carelessness.
Limits. The system is procedurally constrained — questions must be admissible, notice periods must be met, supplementaries are limited. Skilful ministers can deflect questions through evasive answers, technical refusals, or referral to written answers. The 15-21 day notice period means that questions are often outdated by the time they are answered.
Disruption issues. In recent years, Question Hour has often been disrupted by Opposition protests on extraneous matters. The disruption tactic has costs — it prevents both Opposition and government from engaging on substantive issues. Some recent sessions have lost most of their Question Hour to disruptions.
Despite these limits, Question Hour and Zero Hour remain among the most-used and most-effective tools of parliamentary scrutiny. Their daily operation produces a continuous record of executive answerability that is constitutionally and politically valuable.
What students must hold
Six points carry the weight. One, Question Hour is the first hour of every sitting day — 10:00-11:00 AM in Lok Sabha; 12:00-1:00 PM in Rajya Sabha. Reserved exclusively for questions to ministers.
Two, three types of questions: Starred (oral answer + supplementaries), Unstarred (written answer only), Short-notice (urgent, with minister's consent, oral + supplementaries). Notice period for starred and unstarred is 15-21 days.
Three, Question Hour is governed by the Rules of Procedure of each House — formal, codified procedure with specific admissibility criteria.
Four, Zero Hour begins at 12:00 noon — immediately after Question Hour. Indian innovation. NOT formally recognised in the Rules of Procedure. Convention-based.
Five, Zero Hour matters: same-day notice before 10:00 AM; matters of urgent public importance; minister may respond but is not obliged to; no formal supplementaries.
Six, Question Hour can be suspended for special circumstances (Presidential address, major debate). It was famously suspended for the Monsoon Session 2020 during COVID. For more on parliamentary control, see parliamentary control over the executive.