This study assesses the future sales growth in two, three and four wheeler vehicles in Tamil Nadu by 2030, and presents the reduction in carbon emissions from electrification in these vehicle segments based on two scenarios. If by 2030, 5% of all vehicle sales are converted to electric, the state can save close to 36.5 million tonnes of carbon emissions. These savings go up to 38.7 million tonnes if Tamil Nadu achieves electrification of 10% of newly registered vehicles between 2022 and 2030.