If you're just transiting through Bangkok and not leaving the airport, you likely don't need to pay for a visa at all, as long as your layover is within the allowed time for a transit without a visa. However, if you plan to exit the airport during the layover, you'll need to check the specifics of the visa on arrival process. Since India is eligible for visa-free transit or a free visa on arrival (for up to 15 days), you wouldn't need to pay for a transit visa. If you're unsure about the requirements, Matrix provides visa assistance and can help clarify and streamline the process for your trip.
As per the current rules, **Visa on Arrival (VoA)** in Thailand is **free** for Indian passport holders if you're staying for up to **15 days** under the visa exemption rule. However, if you are only in **transit** and not leaving the airport (staying within the international transit area), you typically **don't need a visa at all**. Since your layover is in Bangkok, if you **stay within the airport** and don’t exit the transit area, you do not need to pay for a transit visa. **Visa is only required if you leave the airport**. However, it’s always a good idea to confirm with the airline or airport authorities in case of any specific changes to rules.