RSSB Lab Assistant Recruitment 2026: Apply Online for 804 Vacancies | Rajasthan Govt Jobs

RSSB Lab Assistant Recruitment 2026: Complete Official Guide

The Rajasthan Staff Selection Board (RSSB) has officially released one of the most anticipated recruitment notifications of 2026 — an invitation for 804 vacancies for the posts of Lab Assistant and Junior Lab Assistant under various government departments across Rajasthan. This is an exceptional opportunity for science students who have completed their Class 12 or hold a relevant diploma and are looking to secure a permanent government position.

The recruitment is conducted by RSSB (also known as RSMSSB — Rajasthan Subordinate and Ministerial Service Selection Board) — the premier body responsible for recruitment to subordinate services in Rajasthan.

Why RSSB Lab Assistant is a Great Career Choice

Lab Assistants in Rajasthan government departments work in a wide range of settings — from school laboratories (Science Teacher support) to public health laboratories (water testing, disease diagnosis) and industrial safety inspection labs. Here’s why this is a strong career move:

• Government Job Security: Once selected, Lab Assistants are permanent employees of the Rajasthan State Government with full job protection.
• Competitive Pay: Starting pay at Pay Matrix Level 5 (₹20,800 base), with regular revision under State Pay Commission recommendations.
• Science Career Track: A Lab Assistant can progress to Senior Lab Assistant, Lab Technician, and in some departments, to Scientific Officer grade after further qualifications and departmental exams.
• Posted Across Rajasthan: Lab Assistants are posted across all 33 districts of Rajasthan — meaning you can potentially serve near your hometown.
• Work-Life Balance: Government lab timings generally extend to 5–6 hours of core lab work followed by administrative duties in a structured environment.

Recruitment Overview

Vacancy Distribution: Category-wise

The 804 vacancies are distributed across reservation categories as per Rajasthan Government’s reservation policy. The approximate breakup (subject to official notification details):

Note: Verify exact category-wise breakup from the official RSSB notification PDF.

Post-wise Details

Lab Assistant

Lab Assistants are posted in government schools, colleges, and health departments. They manage and maintain laboratory equipment, assist in practical classes, and ensure the safe handling of chemicals and biological specimens.

Key Responsibilities:

• Preparation of lab setups for practical lessons
• Maintenance and calibration of lab instruments (microscopes, balances, burettes, etc.)
• Storage and inventory management of chemicals
• Helping students in conducting experiments
• Preparing and labeling biological specimens
• Maintaining safety standards, first-aid preparedness, and proper chemical disposal

Qualification: 10+2 (Intermediate) with Physics, Chemistry, and Biology or Mathematics (PCB or PCM) from a recognized board, plus a relevant lab-related diploma or certificate as specified in the notification.

Junior Lab Assistant

A more entry-level role primarily in government schools and divisional labs.

Key Responsibilities:

• Supporting senior lab staff in daily operations
• Cleaning and organizing lab materials
• Tracking inventory and keeping records updated
• Assisting in basic sample collection and labeling activities

Qualification: 10+2 (Science stream) or ITI / Diploma in a relevant technical field.

Eligibility Criteria in Detail

Educational Qualification

Candidates must verify the exact educational qualification for their specific post from the official RSSB notification. Requirements may differ by department (e.g., school vs. health department vacancies may have different minimum eligibility).

Age Limit

• Age as on: 01 January 2027 (official reference date for this recruitment)
• Minimum Age: 18 years
• Maximum Age: 40 years (General Category)

Category-wise Age Relaxations:

Note: The “Special Relaxation” of 3 years for all candidates is a Rajasthan Government concession — this significantly broadens the pool of eligible candidates.

Application Fee (One-Time Registration System)

RSSB follows a One-Time Registration (OTR) system. Candidates register once and pay the fee only once for their RSSB profile. If you have already registered and paid the OTR fee in previous RSSB recruitments, no additional fee is required for this notification.

Selection Process: Step by Step

Stage 1: Written Examination

A competitive objective type written examination will be conducted by RSSB.

Exam Structure:

Minimum Qualifying Marks:

• General / EWS / OBC: 40% (i.e., 40/100 marks minimum)
• SC / ST: 35% (i.e., 35/100 marks minimum)

Stage 2: Document Verification

Candidates who qualify the written exam are called for document verification. The merit list is prepared based strictly on written exam performance.

Detailed Exam Syllabus

The Lab Assistant written exam tests both General Knowledge / Aptitude and Technical/Science subject knowledge. Here’s a breakdown:

A. General Knowledge & Awareness (High Priority)

Rajasthan-specific GK (Most important for Rajasthan state exams):

• History of Rajasthan: Prithviraj Chauhan, Maharana Pratap, Maharaja Sawai Jai Singh, Battle of Haldighati, Rajput kingdoms and their heritage
• Culture & Traditions: Rajasthani folk music (Maand), folk dances (Ghoomar, Kalbelia), traditional art (Phad painting, Blue Pottery, Pichwai)
• Geography of Rajasthan: Thar Desert, Aravalli Range, major rivers (Chambal, Luni, Banas, Ghaggar), national parks (Ranthambore, Keoladeo, Desert NP, Sariska)
• Economy: Rajasthan’s mineral wealth (zinc — Zawar mines, marble — Makrana, gypsum, limestone), agriculture (Bajra, Jowar, Mustard, Cotton), tourism
• Rajasthan Polity: Government structure, key departments, Rajasthan State Commission for Women, RSMSSB functions
• Current Affairs: State and national events of the last 12–18 months

National GK:

• Indian Constitution: Fundamental Rights, Preamble, important articles
• Science & Technology: Space missions (ISRO), Digital India, national schemes
• Economy: GDP, inflation, RBI, GST, budget highlights
• National Current Affairs (last 12 months)

B. Elementary Mathematics & Reasoning

Mathematics (Class 8–10 level):

• Number System: HCF, LCM, divisibility rules
• Percentage, Ratio & Proportion, Average
• Simple Interest & Compound Interest
• Profit & Loss
• Time, Speed, Distance
• Time & Work

Reasoning:

• Analogies (letter, number, word)
• Series Completion
• Coding-Decoding
• Blood Relations and Directions
• Logical Venn Diagrams
• Mirror Images & Figure Patterns
• Odd One Out

C. Science Technical Knowledge (Lab-Specific)

Biology:

• Cell: Structure, types, organelles (mitochondria, chloroplast, ribosomes)
• Genetics: DNA, RNA, genes, chromosomes, Mendel’s Laws
• Microbiology: Classification of microbes (bacteria, virus, fungi, protozoa), pathogenic organisms
• Human Anatomy: Digestive, Respiratory, Circulatory, Nervous, Endocrine systems
• Plant Biology: Photosynthesis, transpiration, plant reproduction
• Ecology: Food chains, food webs, ecological pyramids, nutrient cycles

Chemistry:

• Periodic Table: Groups, periods, properties of elements
• Chemical Bonding: Ionic, covalent, metallic bonds
• Acids, Bases, and Salts: pH scale, indicators, neutralization
• Chemical Reactions: Types (combination, decomposition, displacement, redox)
• Organic Chemistry Basics: Hydrocarbons, functional groups, IUPAC nomenclature
• Laboratory Safety: Chemical hazard symbols, handling corrosives and flammables, safety data sheets (SDS)
• Common Lab Reagents: Preparation and uses of common solutions (Benedict’s, Fehling’s, Molisch’s, etc.)

Physics:

• Measurement: SI units, significant figures, errors in measurement
• Motion: Newton’s Laws, velocity, acceleration
• Optics: Reflection, refraction, lenses and mirrors
• Electricity: Ohm’s Law, series & parallel circuits, electrical safety
• Simple Machines, Sound, Magnetism (Class 10 level)

Lab Techniques & Instruments:

• Microscopy: Types (compound, dissecting, phase contrast), how to prepare slides and stains (Gram staining, acid-fast staining)
• Titration: Acid-base, redox titrations; burette, pipette, volumetric flask usage
• Centrifugation: Principle and types
• Chromatography: Paper chromatography, TLC — principles and applications
• Sterilization: Autoclaving, dry heat sterilization, UV sterilization
• pH Meters: Calibration and usage
• Analytical Balance: Weighing principles, calibration
• Spectrophotometry: Beer-Lambert law, operating a spectrophotometer

How to Apply via SSO Portal: Step-by-Step

1. Open the SSO Portal: Go to sso.rajasthan.gov.in
2. Login or Register:
   • Existing users: Login with your SSO ID and password.
   • New users: Click “Register” and create an account using your Aadhaar card or Bhamashah/Jan Aadhaar ID.
3. Go to Recruitment Portal: After logging in, find and click on “RSMSSB / Recruitment Portal” app.
4. Find the Notification: Look for “Lab Assistant / Junior Lab Assistant Recruitment 2026” and click “Apply Now”.
5. Fill the Application Form:
   • Personal details (Name, DOB, gender, domicile state, mobile, email)
   • Educational qualification (Board, year of passing, percentage for 10th and 12th)
   • Category details (for reservation benefits)
   • Exam center preference
6. Upload Documents: Live photo (captured via webcam/phone camera — must be recent) and scanned signature.
7. OTR Fee Payment (if new user): Pay via NEFT, IMPS, Debit/Credit Card, UPI.
8. Submit: Review the complete application and submit. Print/save the confirmation receipt.

Important Preparation Books for RSSB Lab Assistant

60-Day Preparation Plan

Weeks 1–2: Foundation

• Complete NCERT Class 10 Science (Physics, Chemistry, Biology)
• Start with basic Rajasthan GK (districts, rivers, wildlife)
• Daily 20 Reasoning questions

Weeks 3–4: Core Science

• NCERT Class 11-12 Biology (focus on Cell, Genetics, Ecology chapters)
• NCERT Class 11-12 Chemistry (Periodic Table, Chemical Bonding, Organic basics)
• Lab techniques: Read the procedure chapter in any standard microbiology lab manual

Weeks 5–6: GK & Maths

• Complete Rajasthan GK (History, Geography, Economy, Culture)
• National current affairs (last 12 months) — read compiled PDFs from job sites
• Quantitative Aptitude: Solve 30 questions daily (focus on percentage, ratio, SI/CI)

Weeks 7–8: Mock Tests & Revision

• Solve 3 full-length mock tests per week under timed conditions
• Analyze every wrong answer; revise those topics
• Focus on Lab Techniques and safety protocols — these are guaranteed marks

Frequently Asked Questions

Q1. What is the exam date for RSSB Lab Assistant 2026? The exam is tentatively scheduled for May 2026. The exact date will be announced by RSSB on their official website after the application window closes.

Q2. Is there a physical/medical test? There is no standard physical fitness test for Lab Assistant posts. However, medical fitness (absence of serious communicable diseases, adequate vision) is verified during document verification/appointment.

Q3. Can students from outside Rajasthan apply? Rajasthan state government recruitment typically requires Rajasthan domicile for the OBC/SC/ST reservation categories and the special age relaxation. Open category candidates without domicile may apply but won’t be eligible for reservation-based or age relaxation benefits. Check official notification for domicile requirements.

Q4. How many times can I apply for the same post? You can only submit one application per notification. Submitting multiple applications will lead to cancellation of all.

Q5. Is there negative marking? Yes. 1/3rd mark (0.33) is deducted for every wrong answer. Avoid random guessing — only attempt questions where you are reasonably confident.

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Disclaimer: Information about RSSB Lab Assistant Recruitment 2026 has been sourced directly from the official RSSB notification. Candidates must verify all dates, vacancies, fee details, and eligibility criteria from rssb.rajasthan.gov.in and the SSO portal before applying.