CSIR NEERI Syllabus & Exam Pattern 2026: Scientist, Technical Assistant & JSA Scheme PDF

The CSIR-National Environmental Engineering Research Institute (CSIR-NEERI) conducts competitive national examinations and structured interview boards to recruit scientists, technical assistants, technicians, and administrative professionals. Candidates aspiring for a career at this premier environmental R&D institute in Nagpur and its zonal centres must thoroughly understand the examination scheme, topic weightages, and trade test qualifying criteria. For active notifications, vacancy counts, and official application portals, consult our verified CSIR-NEERI Recruitment 2026 Hub.

CSIR-NEERI Examination Structure by Cadre

CSIR-NEERI categorizes recruitment exams based on the functional role: Technical Cadre (Technical Assistant, Technician), Administrative Cadre (Junior Secretariat Assistant - JSA, Stenographer), and Scientific Cadre (Scientist, Senior Scientist).

Technical Assistant Exam Pattern & Marking Scheme

For Technical Assistant posts across Environmental Engineering, Chemical Science, Life Sciences, and Instrumentation, the written examination consists of three papers. Only candidates who qualify in Paper I are evaluated for Papers II and III:

• Paper I (Mental Ability Test - 90 Minutes): 50 Questions carrying 100 Marks (2 marks per question). Covers General Intelligence, Quantitative Aptitude, Reasoning, Problem Solving, and Situational Judgement. There is NO negative marking in Paper I. Minimum qualifying threshold is set by CSIR-NEERI.
• Paper II (General Awareness & English - 30 Minutes): 50 Questions carrying 150 Marks (3 marks per question). Comprises 25 questions on General Awareness and 25 questions on English Language. Negative marking: 1 mark deducted for each wrong answer.
• Paper III (Concerned Discipline Subject - 90 Minutes): 100 Questions carrying 300 Marks (3 marks per question). Strictly focused on the candidate’s domain specialization (e.g., Environmental Chemistry, Water & Wastewater Engineering, Microbiology, Air Quality Monitoring). Negative marking: 1 mark deducted for each wrong answer.

Subject-Wise Detailed Syllabus Breakdown

1. Environmental Engineering & Chemical Sciences

• Water & Wastewater Treatment: Physicochemical treatment methods, coagulation-flocculation, sedimentation, membrane filtration (RO/UF), activated sludge processes, anaerobic digestion, and advanced oxidation processes (AOPs).
• Air Pollution Control & Monitoring: Criteria pollutants (PM2.5, PM10, SOx, NOx), ambient air sampling techniques, continuous emission monitoring systems (CEMS), bag filters, electrostatic precipitators (ESPs), and flue gas desulfurization.
• Solid & Hazardous Waste Management: Municipal solid waste processing, composting, biomethanation, incineration, hazardous waste classification, landfill leachate treatment, and e-waste recycling.
• Environmental Chemistry: Chemical equilibria, pH and buffer capacity, redox reactions, heavy metal speciation, analytical instruments (AAS, ICP-OES, GC-MS, HPLC).

2. Junior Secretariat Assistant (JSA) Syllabus

• Paper I (Mental Ability - 100 Questions / 200 Marks): Analogies, syllogisms, number series, arithmetic reasoning, blood relations, spatial orientation, coding-decoding, and tabular data interpretation.
• Paper II - General Awareness (50 Questions / 150 Marks): Indian polity, Constitution, contemporary environmental governance, scientific developments, Indian economy, geography, and current affairs.
• Paper II - General English (50 Questions / 150 Marks): Vocabulary, synonyms/antonyms, sentence structure, active/passive voice, direct/indirect speech, reading comprehension, and error spotting.
• Skill Test Norms: Typing speed of 35 w.p.m. in English or 30 w.p.m. in Hindi on computer (corresponding to 10500 KDPH / 9000 KDPH).

Interview Preparation Guide for Scientific & Project Posts

For candidates appearing for Scientist or Project Associate interviews at NEERI Nagpur or its zonal laboratories, evaluation focuses on research originality, practical field laboratory skills, and awareness of national environmental regulations:

• Thesis Defense: Be ready to explain your M.Sc./M.Tech/Ph.D. project, specifically addressing sampling protocols, quality assurance/quality control (QA/QC), and statistical validation.
• Regulatory Frameworks: Review key provisions of the Environment (Protection) Act 1986, Air Act 1981, Water Act 1974, Solid Waste Management Rules 2016, and EIA Notification 2006.
• Practical Problem Solving: Interview panels frequently present hypothetical case studies on industrial effluent discharge, river water quality remediation, or urban air smog mitigation.