Anwesha Sarkar

Anwesha Sarkar

Strategic and execution-focused energy professional with 8+ years of experience at ONGC, combining expertise in technical operations, project management, and techno-commercial evaluation, and capital allocation to support Board-approved capital investments exceeding $20B and projects with projected revenues of approximately $1.2B.

Work Experience:

8.7 Years

Industry:

Energy & Utilities | Government & PSUs | Others

Function:

Data Science & Analytics | Operations & Supply Chain | Project & Program Management

Work Experience

Oil and Natural Gas Corporation Limited (India’s leading integrated energy company) | Rajahmundry

Manager

  • Served as the domain Subject Matter Expert (SME) guiding the development of an agentic AI proof-of-concept (PoC) for high-resolution geological interpretation, providing the domain-specific understanding needed for fine-scale stratigraphic correlation and formation evaluation.
  • Conducted portfolio review of four legacy assets accruing recurring liabilities, recommending cancellation of the non-viable opportunities and freeing ~$450M in capital for redeployment to higher-return assets.
  • Drove the techno-commercial assessment of CO₂ storage potential across depleted reservoirs under CCUS, opening pathways to monetize legacy assets through emerging carbon-credit markets.
  • Represented ONGC’s position before the Directorate General of Hydrocarbons (DGH) on asset evaluations, licensing decisions, and regulatory policy matters.
  • Introduced AI-assisted tools to shorten analysis that once took weeks, and digitised scattered legacy data into a single, searchable reference the team could rely on.

Oil and Natural Gas Corporation Limited (India’s leading integrated energy company) | Chennai, Rajahmundry

Senior Officer

  • Developed the commercial business case for a $13B capital programme in India’s eastern deepwater frontier (Cauvery Basin), coordinating cross-functional teams from scratch to secure Board approval for 3 exploration locations and delivering a successful gas discovery valued at $95M.
  • Secured Board approval for 5 development projects worth ~$6.5B in total lifecycle capital across two offshore assets (~100 MMToE in-place volume), through commercial evaluation and cross-functional negotiations.
  • Led the cross-functional re-evaluation of a 493 sq. km offshore block in the KG Basin (Deen Dayal field), identifying 7 new investment opportunities (15.75 BCM gas in-place) and building the case for a strategic exit that saved $200M.
  • Served as ONGC’s core operational interface with ExxonMobil under a strategic MoU for deep-water collaboration, ran benchmarking discussions with Shell, and coordinated joint evaluations and data-exchange workflows with Vedanta, BP, and GSPC.
  • Managed vendor sourcing for high-complexity drilling, floating Expressions of Interest (EoI) and evaluating commercial proposals to support a $200M+ capital-protection decision.

Oil and Natural Gas Corporation Limited (India’s leading integrated energy company) | Chennai

Officer

  • Led a team in opportunity identification and resource assessment across six mature onshore fields (including a joint-venture asset), identifying ~7 MMT in-place oil and ~11 BCM in-place gas (~1.5 MMT recoverable oil and 3 BCM recoverable gas), representing $1.2B in projected gross revenue.
  • Formulated and led a team to re-evaluate overlooked zones in legacy assets after the TNPAZD Act, 2020 regulatory changes, identifying 3 MMT oil and 5 BCM gas within 6 months and unlocking ~$400M+ in incremental asset value.
  • Maintained control-room operations and provided real-time support during high-pressure drilling campaigns, interpreting live data to guide technical decisions through pandemic-related staffing constraints.
  • Coordinated procurement planning and inter-asset resource allocation across simultaneous exploration campaigns, keeping project timelines aligned with regulatory deadlines.
  • Assessed viability and risk across 30+ investment opportunities through data-driven analysis, supporting risk-weighted capital prioritization across competing exploration proposals.
Accomplishments
  • Recipient of the IIMA PGPX 25% Entry Scholarship, awarded at the time of programme admission.
  • ONGC Exploration Director Award (2024) for identifying 8 investment opportunities in a high-impact business area.
  • ONGC Spot Award (2020) by Executive Director for maintaining operational continuity during the COVID-19 lockdown.
  • ONGC Spot Award (2019) by Executive Director for opportunity identification and successful regulatory licence re-grant.
  • Secured two fast-track promotions at ONGC: Officer to Senior Officer (January 2022) and Senior Officer to Manager E3 (January 2026), both supported by consistent A+ annual performance ratings across all years of service.
Education
  • M.Sc. (Applied Geology), Indian Institute of Technology (IIT), Bombay | India
  • B.Sc. (Geology), Presidency University, Kolkata | India
Certification
  • Lean Six Sigma Green Belt – KPMG India Services LLP (2026). Completed a 32-hour certification programme in process improvement and operational excellence.
  • Career Essentials in Generative AI – Microsoft and LinkedIn (2026). Learning path covering Microsoft Copilot, generative-AI applications, and responsible-AI practices.
Extra-curricular
  • Treasurer, Women Development Forum, ONGC, organised awareness programmes and medical camps for women employees and rural communities in Tamil Nadu, demonstrating community engagement beyond core responsibilities.
  • Executive Member, Association of Petroleum Geologists (Southern Chapter), organised technical workshops, seminars, and geological fieldwork for professionals and university students.
  • Alumni Secretary, Department of Earth Sciences, IIT Bombay, maintained alumni networks and coordinated engagement activities between alumni and current students.