Company Profile:

S. K. Mitra & Associates is a Kolkata based Civil Engineering firm, enjoying considerable reputation in the industry for the integrity and dependability of its services. Founded in 1992 by Shyamal Kumar Mitra, a renowned Civil Engineer, this firm specializes in Soil-testing, Consultancy, Surveying, Pile Integrity Tests, Concrete NDT, Quality Assurance and more, using a wide range of state-of-the-art equipment and laboratory facilities.

  Geotechnical Investigation


A lot of emphasis is placed on the quality of fieldwork undertaken for soil testing. Specialized high-performance equipment is also engaged to increase efficiency and accuracy of the investigation. The latest to join the list is a hydraulically powered, tractor-mounted rotary drilling rig that is suited for both coring and non-coring drilling activities, including DTH, to a maximum depth of 150m. This powerful rig is able to cut through any obstruction in the overburden (slag, boulders, etc.) with relative ease.
Apart from undisturbed sampling and standard penetration tests, we also undertake vane shear test, static and dynamic cone penetration tests, both vertical and horizontal plate load tests, electrical resistivity, California Bearing Ratio, field permeability, Block Vibration test, piezometer and other instrumentation & monitoring, pressure meter tests, etc. We also carry out field work for installation of monitoring wells for ground water sampling and trace its direction of flow as a part of environmental studies.

Laboratory Facilities:
We have a well-equipped Soil and Construction Material Testing laboratory. Besides soil testing, we also specialize in material testing of cement, sand, stonechips, bricks, glazed tiles, floor tiles, mix-design, concrete cubes, water, timber, etc. We also have the provision to set up and operate a complete laboratory at project sites if required.


With the facility of a well-equipped laboratory and experienced testing personnel, S. K. Mitra & Associates provides exclusive and diversified consultancy services with regard to geotechnical investigation, Material Testing, Non-Destructive Testing and various studies pertaining to Drainage, Underground Foundations design and construction, Piles etc. to the construction industry with adequate technical support and professionalism.


We undertake Topographical and Contour Survey for projects and Highways using Total Station, GPS and other advanced equipment and have undertaken very large project area surveys.

Pile Testing
Pile Integrity Test, to ascertain the health and actual specifications of recently installed piles, is undertaken with the help of both Pile Echo Test (PET) and the Cross-hole Ultrasonic Monitor test. Guidance is given to improve the quality of piles in case defects are found.

Concrete NDT
We have developed the expertise to test, investigate and predict current health of concrete with respect to strength, corrosion, location of reinforcements and chemical attack. Some of the equipment being used includes Schmidt Hammer, Ultrasonic Pulse Velocity Tester, Rebar Locator and Cover Measurement, Corrosion Analyzing Instrument, Concrete Core Cutting Machine etc.

Quality Assurance
Services of S. K. Mitra & Associates have been sought by various consultants in India and abroad with regard to the quality of raw material, standards followed during project execution as well as in-situ quality checks of construction and filling material, from raw materials to concrete mix.

Health Audit of Marine Structures
Inspection and testing vis-à-vis Health Audit is not limited to on-shore structures alone. We have the expertise to carry out health audit concerning under-water structures and we are the only agency in Eastern India to have successfully carried out detailed study of a large oil jetty and formulated specifications for its rehabilitation.





A few of our esteemed clients :


Bechtel India Limited

Larsen & Toubro Limited

Hindustan Construction Company Limited

North East Frontier Railway

Development Consultants Limited

Stup Consultants Limited

Consulting Engineering Services (India) Limited

Span Consultants Limited

Central & State Institutions and Public Enterprises

Hindalco Limited

Lurgi India Co. Limited

Tata Consulting Engineers Limited

Tata Electric Co. Limited

Daelim Engineering Limited

Stork Engineers B.V., Holland

Praxair (India) Pvt. Limited

Tecnimont ICB Limited

Flour Daniel Pvt. Limited

Bengal Ambuja Housing Development Limited

Bengal Unitech Universal Infrastructure Pvt. Ltd.

Shapoorji Pallonji

Emaar Group

Vedanta Group

Magus Bengal


Shandong Electric Power Construction Corp.