Paperwork, sorted by state.

Road tax, ownership transfer and modification rules are set state-by-state and rarely explained in one place. These three tools try to fix that.

Most used

Road Tax Calculator

Select your state and vehicle type, enter the ex-showroom price, and see an instant estimate — with the exact slab and any EV rebate that applies.

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Document & Transfer Checklist

Buying used, selling, moving states, or just updating your address — pick your situation and get the exact forms and papers.

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Modification Legality Guide

Lighting, wheels, exhaust, tint, engine swaps and colour changes — what's legal, what's a grey area, and what will get you fined.

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A quick honesty note: road tax slabs and EV rebates are revised in state budgets, sometimes mid-year — Karnataka's EV exemption, for instance, changed as recently as April 2026. Every figure on this site is compiled from published patterns and is meant as a planning estimate, not a final number. Always confirm the exact figure on Parivahan or with your local RTO before you pay.