Kanjurmarg East, Mumbai 400 042.

About Us

About us

Improve your business with us.

Founded by Subir Roy Choudhury and Gyaneshwar Tewari, Susangyan co-creates strategy and business plans for clients in the mid and downstream areas of the Oil & Gas Industry, backed by a large team of experienced professionals, specialists in their own rights, assignable to projects for short, mid or long durations as per requirement of the project, service and the required expertise.

Susangyan is equipped with the latest information on the policy, regulations, market trends, and competition in the Indian Oil & Gas Industry and has the richest collective experience in Conceptualization, Design, and Project Management in setting up world –class petroleum retail outlets in India.

Susangyan is the single point dependable address to address any issue pertaining to Oil and Gas marketing in India.

We co-create strategy with customers, provide quality solutions & cost effective services


Subir Roy Choudhury

Subir Roy Choudhury

Ex-Chairman of Hindustan Petroleum Corporation Limited (HPCL)


Subir Roy Choudhury, with a strong technical background and varied professional experience of 38 years across the entire spectrum of Petroleum industry, including Cross Country pipelines and refineries was the Ex-Chairman of Hindustan Petroleum Corporation Limited (HPCL) and also served as Director (Marketing), HPCL.

With exemplary Leadership Skills, he is a prominent and well-connected personality in the Petroleum Industry in India and abroad and the Ministry of Petroleum and Natural Gas, Govt. of India. He has some remarkable achievements like Commissioning of the 9MMPTA Guru Govind Singh Refinery, Debottlenecking and capacity expansion of Visakh & Mumbai HPCL refineries, Full operationalization of Mundra Delhi petroleum Pipeline, Pivotal role in crystallizing the HPCL RAJASTHAN REFINERY and much more.

Subir Roy Choudhury

Gyaneshwar Tewari

Ex-ED Indian Oil Corporation Limited (IOCL)


Gyaneshwar Tewari, with 40 years of experience in Petroleum Retail marketing was the Ex–ED Indian Oil Corporation Limited (IOCL) and Executive Director (State Head) for the territories of Maharashtra & Goa and Uttar Pradesh in two separate terms. He has profound experience in the areas of Marketing, Retail, Supply Chain, Strategy, Government coordination and mostly in leadership roles. Also has the Distinction of being rewarded as the “Best Retailer” in IndianOil Corporation repeatedly, he is an articulate communicator and an effective team leader skilled to steer teams to achieve business goals. He has accomplished development of effective processes and directing logistic functions, supply chain management.

Subir Roy Choudhury

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