Next-Gen Engineering Intelligence for Your Plant
Who We Are
Lummus Digital is at the forefront of transforming the oil and gas downstream sector by offering innovative digital solutions that tackle the most complex challenges faced by refineries and petrochemical industries. As a joint venture between TCG Digital and Lummus Technology, we blend decades of process engineering expertise with advanced AI and data science to deliver tailored solutions that deliver measurable outcomes.
With the integration of Lummus Technology’s proprietary process engineering know-how and TCG Digital’s advanced AI and data science capabilities, Lummus Digital promises to drive unparalleled innovation and optimize performance in the downstream sector.

Why Choose US
We give your data a purpose!
Lummus Digital stands out as a transformative force in the refining and petrochemical industries, addressing complex challenges with data-driven innovative solutions. What sets us apart is our hybrid modelling approach—integrating first principles-based process models, domain expertise with data science, and building on decades of proprietary engineering know-how from Lummus Technology with TCG Digital’s advanced AI-ML capabilities. Our solutions are validated by expert process engineers, ensuring reliability and precision, and are tailored to deliver tangible business value even under complex conditions!
Unlike generic digital solutions, we offer a clear, configurable roadmap for digital transformation, enabling faster decision-making, reducing uncertainties, and improving overall plant performance. Backed by a team of over 500 process engineers and 100+ data scientists, Lummus Digital delivers actionable insights that enhance efficiency, profitability, and safety, transforming raw data into meaningful improvements for your refinery’s future.
Efficiency & ROI
Maximizing operational performance while reducing costs
Purpose-Built Solutions
Tailored to the specific needs of the downstream sector
Innovation at Scale
Combining process engineering expertise with modern AI and data science for impactful transformation
Your Partner in Transformation
Increased Profitability through Optimized Product Yields.
Enhanced Operational Stability.
Sustainable Solutions with Lower Energy for a Brighter, Greener Tomorrow.
Enhanced Responsiveness to Fluctuating Demands.
Board of Directors
Our philosophy is simple — hire a team of diverse, passionate people and foster a culture that empowers you to do your best work.

Debdas Sen
Executive Director
Debdas is the Executive Director of Lummus Digital, the flagship, modern-age technology company of The Chatterjee Group …

Debdas Sen
Executive Director

Ujjal Mukerjee
Executive Director
Ujjal Mukherjee is the Executive Director of Lummus Digital. He also serves as Chief Technology Officer of Lummus Technology…

Ujjal Mukerjee
Executive Director

Mikael Hagstroem
Board Member
Mikael is one of the key board members of Lummus Digital and is also the CEO of LabVantage Solutions Inc.…

Mikael Hagstroem
Board Member

Ron Venner
Board Member
Ron has 45 years of experience in process engineering, technology licensing, sales and marketing …

Ron Venner
Board Member

Snehal Patel
Board Member
Snehal Patel serves as the Board Member of Lummus Digital, adeptly integrating visionary leadership with extensive global experience…

Snehal Patel
Board Member
Leadership Team
Our leadership team brings together a diverse group of experienced professionals dedicated to driving innovation, growth, and excellence.

Sujoy Choudhury
Chief Strategy Officer
Sujoy is currently Chief Strategy Officer for TCG Group, which also...

Sujoy Choudhury
Chief Strategy Officer

Amitabha Sinha
SVP and MD Lummus Digital
Amitabha has over 25 years of experience in technology and strategic consulting...

Amitabha Sinha
SVP and MD Lummus Digital
Amitabha has over 25 years of experience in technology and strategic consulting. Both on the technology as well as the digital strategy side, he has run transformation projects with Fortune 100 companies in geographies like US, Canada, UK, and Singapore. Amitabha started his career with IBM Thomas J. Watson Research Center. Thereafter, he worked for consulting majors like PwC (UK) and EY (US) and has run large BFSI ODCs based out of Singapore and Hong Kong.
Amitabha is an alum of IIT Delhi and Carnegie Mellon University.

Prakash Ramdoss
Joint Managing Director
Prakash Ramdoss is the Joint Managing Director of Lummus Digital. With over 28 years of experience in the design and operation of plants…

Prakash Ramdoss
Joint Managing Director

Neha Agarwal
Chief Operating Officer
Neha is currently the Chief Operating Officer at Lummus Digital. A Chartered Accountant and ISB alumni…

Neha Agarwal
Chief Operating Officer