Bihar Vehicle Registrations October 2026: 1,25,490 Units, −47.2% YoY

1,25,490 vehicles were registered in Bihar in October 2026. Volume slumped 47.2% against October 2025 and grew strongly 13.9% against September. Its best month on record remains October 2025 at 2,37,766.

That made Bihar the 11th largest vehicle market in India in October 2026, behind Odisha on 1,26,837 and ahead of Haryana on 1,21,201.

That is 3.9% of every vehicle registered in the country that month, −1.78pp against October 2025.

Across 2026 to date — the 10 months of the year that have closed — Bihar has registered 12,88,142 vehicles, +8.6% on the same months of 2025.

78.3% of everything registered in Bihar in 2026 is two-wheelers, and the state accounts for 5.4% of that segment nationally. Against the national mix, Bihar skews towards two-wheelers — +7.09pp more of its book than India as a whole.

This split is the calendar year to date. Our Vahan data holds a state's registrations by month, and a state's registrations by vehicle class, but not the two together — so the volumes here cover 2026 rather than October 2026 alone. It holds no manufacturer-by-state table either, which is why no page here says which brand leads in Bihar.

10.6% of Bihar's 2026 registrations are battery electric — 1,46,839 vehicles, against a national average of 10.6%. A year earlier the state was at 8.2%. CNG and LPG account for 3.6% here against 5.5% nationally.

Fuel, like segment, is published against the state for the whole calendar year rather than by month, so these shares are 2026 to date. Hybrids are counted separately from battery electrics.

Registrations by state for October 2026, exact and directly comparable — this is the one state table on the desk that has a real month axis behind it, so the year-on-year column compares the same month a year earlier rather than a part year against a whole one.

The last 15 months on record for Bihar. The running month is left without a year-on-year figure.