Nayara Energy Upgrades Vadinar Refinery So 100% of Its Diesel Meets BS-VI Standards

Nayara Energy has commissioned a major upgrade at its Vadinar refinery in Gujarat, so that 100% of its diesel production now continuously meets BS-VI emission standards — India’s cleanest fuel norms.

What was upgraded

• The project is a revamp of the VGO-MHC (Vacuum Gasoil Mild Hydrocracker) unit, commissioned on 5 November 2026
• It extends the unit’s operating cycle by more than 150%, meaning much longer periods between planned maintenance shutdowns and steadier fuel supply
• The upgrade improves efficiency and crude processing flexibility, raising the refinery’s Nelson Complexity Index to 12.6
• The work included installing a 1,435-tonne reactor inside a live, operating refinery

Why it matters

• The Vadinar refinery has a capacity of 20 million tonnes per annum and is India’s second-largest single-site refinery
• The upgrade strengthens the refinery’s ability to reliably produce cleaner fuels and support India’s growing energy needs
• Nayara Energy is backed by Rosneft and operates as an integrated downstream energy and petrochemicals company

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