What does a CISF Constable do?

CISF Constable is responsible for providing security and fire protection services to critical infrastructure, including 65+ international and domestic airports (including Delhi, Mumbai, and Bengaluru), nuclear installations (like BARC and NPCIL plants), space establishments (ISRO), defence PSUs, government buildings, heritage monuments (including the Taj Mahal and Red Fort), metro rail networks, and seaports. CISF is unique among CAPFs as it primarily guards civilian infrastructure. Constable (Fire) posts are specifically for fire prevention and firefighting duties at industrial units and airports.

What are the physical standards for CISF Constable recruitment?

Male CISF Constable candidates must have a minimum height of 165 cm (157.5 cm for scheduled tribes), with chest measurement of 81 cm unexpanded and minimum 86 cm expanded (5 cm expansion). Female candidates need 157 cm minimum height (154 cm for ST). The Physical Efficiency Test includes 1.6 km run in 8 minutes (male) — note this is different from other CAPFs — and 800 metres in 4 minutes (female). For Constable Fire posts, additional fire-related physical tests are conducted. Eye standards are strict — no colour blindness for Fire posts.

What is the difference between CISF Constable Fire and Tradesmen?

CISF Constable Fire posts involve firefighting and fire prevention duties at airports, industrial units, and nuclear installations. These personnel are trained firefighters who handle fire emergencies, conduct fire safety inspections, and operate fire tenders. Tradesmen posts cover skilled trade roles like Driver, Cook, Safai Karamchari (Housekeeping), Tailor, Cobbler, Gardener, and Barber that support CISF unit operations. While both are at the same pay level (Level 3, Rs. 21,700), Fire posts carry operational risk allowances and special firefighting pay.

What are the career opportunities after joining as CISF Constable?

CISF Constable starts at Level 3 (Rs. 21,700) and can be promoted to Head Constable (Level 4), ASI (Level 5, Rs. 29,200), SI (Level 6), and Inspector (Level 7) through departmental promotion exams. CISF offers unique opportunities to work at international airports in major cities, providing exposure to aviation security protocols. Constables working at airports receive additional aviation security allowances. CISF personnel are also deployed for VIP protection at sensitive government buildings.

How is CISF different from other paramilitary forces?

CISF is primarily a security and fire protection force for industrial and critical infrastructure, unlike CRPF (internal security/anti-insurgency), BSF (border guarding), and ITBP/SSB (mountain/border forces). CISF personnel work in a more urban, professional environment — guarding airports, metro stations, and nuclear plants — rather than border outposts or counter-insurgency zones. CISF is also the largest industrial security force globally with 1.5+ lakh personnel. The work environment is generally less physically demanding but requires high alertness and professional security skills.

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CISF Constable Exam Preparation Guide

Central Industrial Security Force (CISF) / SSC

Your Complete Preparation Guide for CISF Constable Exam 2027 — strategy, study plan, tips & more.

DifficultyEasy

Total Marks100

Duration90 min

Start Practising Now →Free Mock Tests

Exam Overview

Mode

Online (Computer-based)

Frequency

Annual (SSC GD Constable exam)

Next Exam Date

February 2027

EEligibility Criteria

Class 10 pass; Age 18-23 years; Male: height 165cm, chest 81-86cm; Female: height 157cm; For Fire posts: colour blindness disqualifies; Physical fitness mandatory

ANumber of Attempts

Multiple within age limit

Study Plan by Subject

General Knowledge & Current Affairs

Week 1-4: Foundation

Core concepts & basics

Week 5-8: Deep Practice

Advanced problems & revision

Week 9-12: Mock Tests + Revision

Full-length tests & weak-area focus

Refer to official syllabus for complete topic list

Elementary Mathematics

Week 1-4: Foundation

Core concepts & basics

Week 5-8: Deep Practice

Advanced problems & revision

Week 9-12: Mock Tests + Revision

Full-length tests & weak-area focus

Refer to official syllabus for complete topic list

English Language

Week 1-4: Foundation

Core concepts & basics

Week 5-8: Deep Practice

Advanced problems & revision

Week 9-12: Mock Tests + Revision

Full-length tests & weak-area focus

Refer to official syllabus for complete topic list

Reasoning Ability

Week 1-4: Foundation

Core concepts & basics

Week 5-8: Deep Practice

Advanced problems & revision

Week 9-12: Mock Tests + Revision

Full-length tests & weak-area focus

Refer to official syllabus for complete topic list

Expert Preparation Tips

CISF exam is same as SSC GD Constable exam — practice SSC GD previous year papers for the best preparation.

For CISF Fire posts, study basic fire safety and fire fighting principles as they may be relevant for interviews or trade tests.

Focus on General Knowledge related to airports, aviation security, nuclear energy, and critical infrastructure as CISF-specific awareness questions may appear.

The Mathematics section covers Class 6-10 topics — master ratio-proportion, percentage calculations, and time-work problems for quick scoring.

Exam Pattern at a Glance

Section	Questions	Marks	Duration (est.)
General Knowledge & Current Affairs	25	25	23 min
Elementary Mathematics	25	25	23 min
English Language	25	25	23 min
Reasoning Ability	25	25	23 min
Total	100	100	90 min

Important Dates

Registration Opens

September-October 2026

Next Exam Date

February 2027

Conducted By

Central Industrial Security Force (CISF) / SSC

Frequently Asked Questions

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