One book. The complete GATE Environmental Science & Engineering (ES) syllabus — prepared for GATE 2027.
Most GATE ES aspirants juggle a chemistry text, a microbiology text, a water-treatment manual, scattered notes, and a PYQ booklet. This guide replaces the stack written by an environmental professional for the ES paper, it takes you from first principles to exam-day speed in one carefully sequenced course.

What's inside
40 chapters across 10 Parts — Mathematics, Environmental Chemistry, Microbiology, Water Resources & Hydraulics, Water & Wastewater Treatment, Air & Noise Pollution, Solid & Hazardous Waste, Global Environmental Issues, and Environmental Management & Sustainability.
Formula & Fact Sheets in every chapter and Speed-Revision Capsules for the final week.
Solved examples with exam tips throughout.
Previous-Year Question Bank, 2021–2026 with worked solutions.
Three full-length mock tests on the latest GATE pattern — MCQ, MSQ, and NAT, with explanations.
Six appendices — Indian environmental standards, legislation, reactions and cycles, data tables, virtual-calculator shortcuts, and a glossary — plus a subject index

Built for how GATE is scored
Common traps and examiner's notes flag the mistakes that cost marks.</li>
Current Indian rules, including the Solid Waste Management Rules, 2026 and the C&D Waste Rules, 2025.
A 120-day study roadmap and indicative marks weightage for every section.</li>

Who it is for
GATE ES aspirants, environmental science and engineering students, and candidates for PSU and pollution control board posts.