We are an independent private company with head-office in Kolkata, India undertaking tank calibration, inspection, certification (through various international governmental metrological departments and non-governmental organizations), ultrasonic testing, tank settlement and tilt survey. The company was conceptualized in 1987 as a proprietorship firm by Late Tomojit Ghosh (1935 to 1995). He was a chemical engineer from Jadavpur University, Kolkata, along with a Master degree and held expertise in the field of metallurgy, inspection and survey.


Since then we have been spreading across geographical boundaries to extend our quality services to all types of organizations - big or small. No job is considered a small job. We are motivated to climb higher in today's competitive contemporary industrial arena. Carrying on the legacy and led from the forefront by Prosenjit Ghosh, AMIE, an engineer with an experience of 25 years and providing unique technical and mathematical innovation, we are commited to provide not only volumetric accuracy but complete survey solutions to our clients at competitive rates - both pan India and internationally. Our global footprint is a proof to our realizing TGC to make it a globally competetive and executable organization with quality and pricing backed up by a strong team.


We are now a consortium of efficient, responsive and experienced engineers with on-field technical expertise combined with CAD-modeled mathematical volume analysis. We certainly have the edge with constant technological innovation and upgradation - meeting international standards like Laser EODR, OTM, laser scanned tank bottom volumes and solving other intricate problems like tilted underground tanks .


To make the tank owner understand the extreme importance of accurate volumes. Tank Calibration and survey helps the owner of the tank to get a thorough feedback about inventory, leading to mixing accuracy linked to product quality and tank health, which if wrongly executed or left unchecked may prove costly and disastrous. A thorough understanding of any tank characteristic has earned us the reputation of a first hand solution provider in the industry - in India and worldwide.

Prosenjit Ghosh

President and Technical Head

Late Tomojit Ghosh

Chairman Emeritus

Vikramjit Ghosh

Chief Operating Officer

Vendor Codes: IOC-11931311,BPCL-148016 HPCL 28089118, RIL- 321170