Rajasthan RSSB Lab Assistant Answer Key 2026

The Rajasthan Subordinate and Ministerial Services Selection Board (RSMSSB) conducts the Lab Assistant recruitment examination for filling laboratory assistant positions in various government departments, institutions, and laboratories across Rajasthan state. Lab Assistants are responsible for assisting in laboratory work, maintaining equipment, preparing specimens, and supporting scientific staff in government hospitals, medical colleges, research institutions, and educational establishments. This is a Group C level post under the Rajasthan state government with opportunities in health, education, and research sectors. The selection process involves a written examination followed by document verification for eligible candidates. Successful candidates receive state government employee benefits including job security, pension, and regular increments. The answer key for the 2026 examination will be released on the official RSMSSB website after the exam is conducted, allowing candidates to calculate their probable scores before the final result declaration.

Important Dates (Typical / Indicative)

Vacancy Details (Typical / Indicative)

Note: Actual vacancy numbers vary by recruitment year and are announced in the official notification.

Educational Qualification

• Minimum Qualification: Bachelor's degree in Science (B.Sc.) with Chemistry/Physics/Biology/Botany/Zoology as one of the main subjects from a recognized university
• Preferred: B.Sc. with specialization in Medical Laboratory Technology or relevant laboratory sciences
• Additional: Knowledge of Hindi written in Devanagari script and knowledge of Rajasthan culture is mandatory
• Candidates awaiting final year results are not eligible to apply

Age Limit

Age as on January 1, 2026:

Nationality

• Candidate must be a citizen of India
• Preference given to domiciles of Rajasthan state
• Non-Rajasthani candidates may apply but Rajasthan domicile candidates get priority in selection

How to Apply

1. Visit Official Website: Go to the official RSMSSB portal at rsmssb.rajasthan.gov.in
2. Registration: Click on 'New User Registration' and create an account using mobile number and email ID
3. Login: Use registration credentials to log into the candidate portal
4. Fill Application Form: Complete the online application form with personal, educational, and contact details
5. Upload Documents: Scan and upload recent photograph (10-50 KB), signature (5-20 KB), and relevant certificates in prescribed format (JPG/JPEG)
6. Payment of Fee: Pay application fee through online mode (Debit Card/Credit Card/Net Banking/UPI) or generate e-challan for offline payment
7. Submit Application: Review all details carefully and submit the application form
8. Print Application: Take printout of the submitted application form for future reference
9. Note Application Number: Save the application number for tracking status and downloading admit card

Application Fee

Payment can be made online or through e-challan at authorized banks.

Selection Stages

1. Written Examination: A computer-based objective type written examination covering general knowledge, science subjects (Physics, Chemistry, Biology), reasoning ability, and Rajasthan GK. This is the primary selection stage carrying maximum weightage.

1. Document Verification: Candidates who qualify the written examination based on merit and cut-off marks are called for document verification. Original certificates of age, educational qualification, caste certificate, domicile certificate, and other relevant documents are verified.

1. Medical Examination: Shortlisted candidates undergo medical fitness examination to ensure they meet the physical standards required for laboratory work, including vision, hearing, and general health parameters.

1. Final Merit List: The final selection is based on marks obtained in the written examination. In case of tie, inter-se merit is determined by age (older candidates preferred), followed by alphabetical order of names.

1. Appointment: Selected candidates receive appointment letters and are allocated to various departments/institutions based on merit rank and preference, subject to availability of vacancies.

Exam Pattern

Written Examination (Single Paper)

Exam Mode: Computer Based Test (CBT) / Offline OMR based (as per RSMSSB decision)

Marking Scheme:

• Each question carries 2 marks
• Negative Marking: 1/3 mark (0.66 marks) deducted for each wrong answer
• No marks deducted for unattempted questions
• All questions are objective multiple-choice questions (MCQs) with 4 options

Detailed Syllabus

General Knowledge & Current Affairs

• Indian History (Ancient, Medieval, Modern)
• Indian National Movement and Freedom Struggle
• Indian Polity and Constitution
• Indian Economy and Five Year Plans
• Geography of India and World
• Current National and International Events
• Sports and Games
• Awards and Honours
• Important Books and Authors
• International and National Organizations

Rajasthan GK & Culture

• History of Rajasthan (Kingdoms, Dynasties, Freedom Movement)
• Art, Culture, Literature, and Heritage of Rajasthan
• Fairs, Festivals, and Folk traditions
• Geography, Climate, and Natural Resources of Rajasthan
• Economy of Rajasthan (Agriculture, Industries, Tourism)
• Major Tourist Places and Historical Monuments
• Rajasthan Government Schemes and Policies
• Political System and Administration of Rajasthan

Physics

• Measurements and Units
• Motion, Force, and Laws of Motion
• Work, Energy, and Power
• Heat and Thermodynamics
• Light and Optics
• Electricity and Magnetism
• Modern Physics (Atomic Structure, Radioactivity)
• Laboratory Instruments and their uses

Chemistry

• Atomic Structure and Periodic Table
• Chemical Bonding
• States of Matter (Solid, Liquid, Gas)
• Solutions, Acids, Bases, and Salts
• Chemical Reactions and Equations
• Organic Chemistry Basics
• Inorganic Chemistry Fundamentals
• Laboratory Chemicals and Safety
• Analytical Techniques

Biology (Botany & Zoology)

• Cell Biology and Cell Structure
• Classification of Living Organisms
• Plant Anatomy and Physiology
• Animal Anatomy and Physiology
• Genetics and Evolution
• Human Body Systems
• Microbiology Basics
• Ecology and Environment
• Disease and Prevention

Reasoning & Mental Ability

• Analogies and Similarities
• Number Series and Letter Series
• Coding-Decoding
• Blood Relations
• Direction Sense Test
• Syllogism and Statement-Conclusion
• Venn Diagrams
• Data Interpretation
• Logical Reasoning

Computer Basics

• Fundamentals of Computers
• Hardware and Software concepts
• Operating Systems (Windows, Linux basics)
• MS Office (Word, Excel, PowerPoint)
• Internet and Email basics
• Computer Networks fundamentals
• Cyber Security awareness

Laboratory Techniques & Safety

• Laboratory Equipment and Instruments
• Glassware handling and cleaning
• Preparation of Solutions and Reagents
• Laboratory Safety Rules and Regulations
• First Aid in Laboratory
• Sterilization and Disinfection techniques
• Sample Collection and Preservation
• Microscopy techniques
• pH measurement and Titration
• Laboratory Record Maintenance

Salary Structure (Typical / Indicative - as per 7th Pay Commission)

Additional Benefits:

• Annual increment of approximately 3% of basic pay
• Medical facilities for self and family
• Leave Travel Concession (LTC)
• Pension benefits under New Pension Scheme (NPS) or Old Pension Scheme (depending on joining date)
• Provident Fund (GPF/CPF)
• Gratuity after retirement
• Festival advances and other welfare schemes

Lab Assistants in Rajasthan government service have structured career progression through departmental promotion committees. After completing required service periods (typically 5-8 years) and meeting performance criteria, Lab Assistants can be promoted to Senior Lab Assistant, then to Lab Technician, and eventually to Laboratory Supervisor or Assistant Director positions in their respective departments. Additional qualifications, training certifications, and good service records significantly enhance promotion prospects, with opportunities to reach Group B level posts through competitive departmental examinations and seniority-based promotions.

The RSMSSB releases admit cards approximately 10-15 days before the scheduled examination date on the official website rsmssb.rajasthan.gov.in. Candidates can download their admit cards by logging into their account using application number and date of birth or password. The admit card contains important details including examination centre, date, timing, roll number, and instructions for the exam day. No physical admit cards are sent by post; candidates must download and carry a printed copy along with valid photo ID proof (Aadhar card, Driving License, Voter ID, or Passport) to the examination centre.

RSMSSB declares the Lab Assistant examination result typically 4-6 weeks after the final answer key is published. The result is announced on the official website in PDF format containing roll numbers of qualified candidates. Candidates can check their individual scorecard by logging into their account with registration credentials. The result includes total marks obtained, cut-off marks for different categories, and merit position. Shortlisted candidates are then called for document verification based on the number of vacancies and merit ranking, with detailed instructions communicated through registered email and SMS.

The cut-off marks for RSMSSB Lab Assistant exam vary each year depending on factors like difficulty level, number of vacancies, and total applicants. Typical cut-off ranges (out of 300 marks) are: General/UR category - 180-200 marks (60-67%), OBC - 170-190 marks (57-63%), SC - 155-175 marks (52-58%), and ST - 145-165 marks (48-55%). Category-wise cut-offs are determined separately, and candidates must score above the minimum qualifying marks to be eligible for document verification. Previous years' trends show that well-prepared candidates scoring above 65% generally have safe chances of selection in the general category.

Examination Centres

RSMSSB conducts the Lab Assistant examination at multiple centres across Rajasthan state:

Major Exam Cities: Jaipur, Jodhpur, Kota, Ajmer, Udaipur, Bikaner, Alwar, Bharatpur, Sikar, Pali, Sri Ganganagar, Bhilwara, Tonk, Nagaur, Chittorgarh, Jhunjhunu, Barmer, Hanumangarh, Sawai Madhopur, Churu, Jhalawar, Banswara, Dungarpur, Bundi, Rajsamand, Pratapgarh, Dausa, Karauli, Dholpur, Sirohi

Note: Candidates can select their preferred examination city during the application process. However, the exact examination centre address within the selected city is assigned by RSMSSB and mentioned on the admit card. The Board reserves the right to change or add examination centres depending on the number of applicants.