Parliament cannot examine every Bill, budget line, and ministry in the full House. So it delegates real scrutiny work to committees. Some committees are permanent. Others exist only to study one Bill, then dissolve. Between them, they cover finance, ministries, and social welfare, including the Committee on the Welfare of Scheduled Castes and Scheduled Tribes.
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Parliament’s Four Key Committees
Membership and term, at a glance
PAC
22 members: 15 LS + 7 RS. 1-year term. Chair from Opposition since 1967.
Estimates Committee
30 members, all Lok Sabha. No Rajya Sabha seats. 1-year term.
COPU
22 members: 15 LS + 7 RS. 1-year term.
SC/ST Welfare Committee
30 members: 20 LS + 10 RS. Chair by LS Speaker.
The rule that cuts across all of them: no sitting Minister can be a member of any Parliamentary Committee — not even a Minister whose own ministry the committee oversees.
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🏛️ Must Know
Standing vs Ad Hoc Committees
- StandingPermanent bodies, reconstituted regularly — e.g. PAC, Estimates, COPU.
- Ad hocLike a Select or Joint Committee on a Bill, dissolve once their specific task is done.
- Why the splitPermanent committees give steady scrutiny; ad hoc ones focus tightly on one task, so both are tested separately.
- So whatA question naming a one-Bill committee means ad hoc; a recurring watchdog means standing.
The Three Financial Committees
- PAC22 members (15 LS + 7 RS), one-year term. Scrutinises government spending after the fact, with CAG’s help.
- Estimates30 members, ALL from Lok Sabha — no Rajya Sabha. Examines budget estimates to suggest economies.
- COPU22 members (15 LS + 7 RS), one-year term. Examines reports and accounts of public undertakings.
- The core ruleNo sitting Minister can be a member of any Parliamentary Committee — even one overseeing the Minister’s own ministry.
- Why it mattersUPSC tests the Estimates Committee’s all-Lok-Sabha rule and the no-Minister rule repeatedly.
🏘️ Good to Know
The 24 DRSCs
- 24 committeesDepartmentally Related Standing Committees cover every central ministry/department.
- 2004 reorgReorganised in 2004 from an earlier set of 17 committees.
- Secretariat split16 serviced by Lok Sabha Secretariat, 8 by Rajya Sabha Secretariat.
- 31 members each21 from LS (Speaker-nominated) + 10 from RS (Chairman-nominated).
- One-year termEach DRSC serves a one-year term from the date it is constituted.
- Why one yearBecause the committees are reconstituted after each election, a one-year term keeps oversight fresh and aligned with the current House.
The 24 DRSCs at a Glance
- AgricultureAgriculture and Farmers Welfare
- Chemicals and FertilizersChemicals and Fertilizers
- Coal and SteelCoal; Steel
- CommerceCommerce and Industry; Textiles
- DefenceDefence
- EnergyPower; New and Renewable Energy
- External AffairsExternal Affairs
- FinanceFinance; Corporate Affairs
- Food, Consumer Affairs and PDFood Processing; Consumer Affairs and Public Distribution
- Health and Family WelfareHealth; AYUSH
- Home AffairsHome Affairs
- Human Resource DevelopmentEducation
- IndustryHeavy Industries; MSME
- Information TechnologyCommunications and IT
- LabourLabour and Employment
- Law and JusticeLaw and Justice; Personnel and Public Grievances
- Petroleum and Natural GasPetroleum and Natural Gas
- RailwaysRailways
- Rural DevelopmentRural Development; Panchayati Raj
- Science and Technology, Environment and ForestsScience and Technology; Environment, Forests and Climate Change
- Social Justice and EmpowermentSocial Justice and Empowerment; Tribal Affairs
- Transport, Tourism and CultureRoad Transport and Highways; Civil Aviation; Tourism; Culture
- Urban DevelopmentHousing and Urban Affairs
- Water ResourcesJal Shakti (Water Resources)
- Why it mattersEach DRSC shadows specific ministries, so examiners test both the committee name and which ministry it covers — memorise the mapping, not just the count.
Leadership Conventions
- PAC chairBy convention, the PAC Chairperson has come from the Opposition since 1967.
- Estimates chairBy contrast, the Estimates Committee Chairman is conventionally from the ruling party.
- Why the contrastThe PAC checks past spending, so the Opposition leads it; Estimates guides future spending, so the ruling side leads it.
- So whatOptions that swap these two conventions are the classic trap, so fix both pairings firmly in memory.
✅ Test Yourself
Work through a 5-question chain on Parliamentary Committees, then keep practising with a random Indian Polity question.
⚡ Great to Know
Committee on Welfare of SCs and STs
- 30 members20 elected from LS + 10 from RS, chosen by proportional representation.
- Chair by SpeakerChairperson appointed by the Lok Sabha Speaker from among the committee’s members.
- No MinistersLike most Standing Committees, no Minister is eligible; term ≤ one year.
- TrapOptions swap the 20/10 split or claim the Rajya Sabha Chairman appoints the chair — it’s the LS Speaker.
- Why testedThe SC/ST Welfare Committee’s composition and chair appointment are specific, high-yield facts.
- So whatBecause its 20/10 split and Speaker-appointed chair are exact, they are prime targets for swap-type trap options.
Subordinate Legislation & Regulators
- Committee on Subordinate LegislationChecks whether the Executive stays within delegated rule-making power (UPSC CSP 2018).
- Regulator oversightAd hoc Committees + DRSCs review independent regulators in telecom, insurance, electricity (UPSC CSP 2019).
- Not the othersFinance Commission, FSLRC and NITI Aayog do NOT hold that ongoing oversight role.
- So whatMatch the scrutiny job to the right committee — delegated rules → Subordinate Legislation; regulators → DRSCs/ad hoc.
- How to recallBecause delegated rule-making is about the Executive overstepping, the Subordinate Legislation Committee is the natural watchdog for it.
🎯 Exam Angle (PYQ & MCQ Traps)
CAPF 2018: The All-Lok-Sabha Committee
- QuestionCAPF asked which Committee of Parliament has no members from the Rajya Sabha: Public Accounts, Public Undertakings, Estimates, or a DRSC on Finance. Correct answer: the Estimates Committee.
- WhyThe Estimates Committee is drawn entirely from the Lok Sabha; the PAC and COPU include Rajya Sabha members.
- LinkSource: CAPF AC 2018 (see Q73).
CAPF 2020: The PAC Composition
- QuestionCAPF asked which statement about the Public Accounts Committee is correct. Correct answer: it consists of fifteen members from the Lok Sabha and seven from the Rajya Sabha.
- WhyThe PAC has 22 members (15 LS + 7 RS); the Finance Minister is not its chairperson — the chair is conventionally from the Opposition.
- LinkSource: CAPF AC 2020 (see Q108).
CDS II 2022: The PAC-Chair Trap
- QuestionCDS asked which statement about the Public Accounts Committee is not correct. The wrong one: the Chairperson is elected by its members.
- WhyThe PAC chairperson is not elected by the committee — the post is conventionally held by a member of the Opposition, appointed by the Speaker.
- LinkSource: CDS II 2022 General Knowledge (see Q40).
The ‘All Lok Sabha’ Trap
- Trap option“Every Financial Committee includes Rajya Sabha members” — stated as a blanket rule.
- DistractorPAC and COPU genuinely do include RS members, making the blanket statement feel true.
- Fact testedThe Estimates Committee draws ALL 30 members from the Lok Sabha only — no Rajya Sabha representation.
- Eliminate fastIf an option claims all financial committees have RS members, the Estimates Committee is the counter-example that kills it.
- Try this ruleLearn the one exception by heart: Estimates = 30, all Lok Sabha. Everything else with a number is the trap.
The PAC-Chair Trap
- Trap option“The PAC Chairman is always from the ruling party.”
- DistractorConventional leadership rules are easy to mix up.
- Fact testedSince 1967 the PAC Chairperson is by convention from the Opposition; the Estimates Chairman is from the ruling side.
- Eliminate fastAnchor the PAC-Opposition pairing; the Estimates-ruling pairing is its mirror.
- Try this rulePast spending → Opposition leads PAC; future spending → ruling side leads Estimates.
📰 Current Affairs
DRSC Reconstitution (2024)
- DevelopmentAll 24 DRSCs were reconstituted in September 2024 after the 18th Lok Sabha election.
- Why it mattersLeadership changed — Shashi Tharoor kept External Affairs, Bhartruhari Mahtab took Finance.
- So whatReconstitution after each election keeps committee composition a live current-affairs fact.
JPCs in the News
- DevelopmentA JPC on the Waqf (Amendment) Bill submitted its report on 31 Jan 2025, tabled 13 Feb 2025 with 14 amendments.
- Why it mattersA JPC on ‘One Nation, One Election’ formed in Dec 2024 (chair P.P. Chaudhary); more JPCs formed in Nov 2025.
- So whatAd hoc JPCs on live Bills are current-affairs questions — pair each JPC to its Bill and chairperson.
Beyond the answer
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