Three decades of engineering integrity.
Founded in 1993, Attlas Engineers N Constructors Pvt. Ltd. is a multidisciplinary engineering consultancy with a reputation for technical excellence, integrity and client satisfaction.
About Us
Attlas Engineers 'N' Constructors Pvt. Ltd. is committed to delivering high-quality, innovative and sustainable solutions across a wide spectrum of infrastructure sectors. Established in 1993, the company brings over 30 years of collective expertise through its Principals and Core Team Members.
We are certified under IS/ISO 9001:2015 (Quality Management), ISO 14001:2015 (Environmental Management) and ISO 45001:2018 (Occupational Health & Safety), and operate an NABL-accredited geotechnical laboratory — ensuring precision, compliance and reliability in all investigations and material testing.
Our services span Geotechnical & Geophysical Engineering, Highway & Bridge Design, Environmental Planning, Infrastructure Development, Water Resource Management, Urban Landscape Projects and Construction Supervision — including DPRs, site investigations, laboratory testing and end-to-end project management across public and private sectors.
We have successfully served clients including PWD West Bengal, NABARD/NABCONS, Mackintosh Burn, PHE Directorate, KMDA, NKDA, Eastern & South Eastern Railway, AMUL, Hyundai and many more — delivering projects that range from district highways to national infrastructure corridors.
Our Vision
To be recognized as a leading multidisciplinary engineering consultancy that drives sustainable development and technological excellence, while consistently delivering value to clients, communities, and the environment.
Our Mission
- Innovative, reliable, and cost-effective engineering solutions tailored to client needs
- The highest standards of quality, safety, and environmental responsibility
- Long-term partnerships through integrity, transparency, and technical excellence
- Continuous investment in knowledge, people, and technology for future-ready infrastructure
Guided by experience.
Kanchan Roy Chowdhury
Director · 30+ Years ExperienceB.C.E. (J.U.), M.I.G.S., M.I.E. · Life Member, Indian Geotechnical Society (LM-3591) · Empanelled Geotechnical Engineer of NKDA (Class-I), M.E.D. (Class-I), KMC (Class-I)
Mr. Kanchan Roy Chowdhury, Director of Attlas Engineers 'N' Constructors Pvt. Ltd., brings over 30 years of professional experience in civil and infrastructure engineering. His core expertise lies in geotechnical investigation, foundation engineering, and DPR of highway and bridge design works. He possesses strong technical skills in soil mechanics, structural analysis, project execution, and quality assurance, with a deep understanding of IS and IRC standards. His leadership blends technical proficiency with strategic planning, driving the company's successful execution of diverse public and private sector projects. Known for his precision, foresight, and commitment to excellence, Mr. Chowdhury continues to guide the firm with innovation and integrity.
The people behind the projects.
Sayak Chatterjee
Project Co-ordinatorA young and energetic Civil Engineer with experience in DPR preparation and site supervision across various infrastructure projects. He actively leads project-related tasks, including DPR drafting, technical vetting, and project management consultancy, ensuring timely and quality project delivery in coordination with his team.
Er. Saraswat Dey
Chief Manager & Technical HeadBrings specialized expertise in environmental engineering projects, along with extensive experience in preparing Detailed Project Reports (DPRs) for highways, bridges, and geotechnical investigations. He also oversees the company's financial operations, ensuring efficient project budgeting and resource management.
Er. Puspita Khutia
Geotechnical & CAD SpecialistAn integral part of our team, specialising in geotechnical report preparation and AutoCAD drafting. She has worked on numerous road infrastructure projects, delivering accurate technical documentation and detailed engineering drawings. Her precision, technical knowledge, and dedication contribute significantly to project execution.
Er. Amit Kr Majumder
Laboratory Testing EngineerA dedicated Laboratory Testing Engineer responsible for conducting a wide range of soil and material tests. He ensures accurate and reliable results through meticulous testing procedures and adherence to standards. His expertise plays a crucial role in maintaining the quality and credibility of the NABL-accredited laboratory.
Er. Bisal Dey
Geoinformatics SpecialistWith a strong academic foundation, Bisal Dey offers valuable expertise in civil engineering design, geospatial mapping, and data analysis. His proficiency enhances accurate planning, efficient survey integration, and informed decision-making in both infrastructure development and geotechnical investigations.
Projects at their highest.
A showcase of our most significant project milestones — by scale, complexity and value delivered.
Technical appraisal for widening & strengthening — PWD West Bengal
Strengthening of Diamond Harbour Division highway — PWD WB
Complete DPR for Patrasayar TCAMS cold storage — NABARD
Ongoing — Jhargram large water body — Paschimanchal Unnayan Parshad
Road embankment protection & strengthening — PWD Hooghly
Preparation of 19 DPRs for NABARD Rural Infrastructure Fund — NABCONS
Our service packages.
Tailored engineering service bundles — precise, compliant and designed around your project's needs.
NABL Lab Testing Package
Comprehensive soil investigation + IS 2720 series testing bundle — quick turnaround, computerized reports, NABL-accredited results accepted by all govt. bodies.
- Full IS 2720 test suite
- Computerized NABL reports
- 3–5 day turnaround
- Accepted by PWD, NKDA, KMC
Highway DPR Package
End-to-end Detailed Project Report preparation for road projects — alignment, traffic study, pavement design, BOQ, drawings and submission-ready documentation.
- Topographic & traffic survey
- IRC/IS pavement design
- Complete BOQ & drawings
- NABARD/PWD format DPR
Geotechnical Investigation
Complete sub-soil investigation from bore holes and SPT to bearing capacity analysis — IS-code compliant reports for foundations, bridges and infrastructure projects.
- Borehole drilling & SPT
- Core sampling & logging
- Bearing capacity analysis
- IS-code compliant reports
Why clients keep coming back.
30+ Years of Expertise
Across geotechnical, environmental, infrastructure and transportation sectors.
ISO & NABL Certified
Certified laboratory ensuring quality, accuracy and reliability in testing and reporting.
End-to-End Execution
DPR preparation, detailed design, supervision and complete project management.
Multidisciplinary Team
Skilled engineers, planners and technical specialists under one roof.
Client-Centric Approach
Practical, timely and cost-effective solutions focused on your outcomes.
Advanced Technology
Modern tools for survey, design, modeling and laboratory analysis with a proven track record.