Do I need a transit visa for Don Mueang Airport(DMK), Bangkok [duplicate]

I am an Indian citizen travelling from Chengdu, China to Mumbai, India on Thai Lion Air.

My itinerary is as follows:

Flight SL933 - Chengdu(CTU) to Don Mueang(DMK) - Depart at 03:35 and arrive at 05:50 on November 1
Flight SL218 - Don Mueang(DMK) to Mumbai(BOM) - Depart at 02:25 and arrive at 05:40 on November 2

I have a 20h35m layover at Bangkok's Don Mueang airport (DMK). Do I need a transit visa for Bangkok? The entire itinerary is on a single ticket.

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Do I need a transit visa for Don Mueang Airport(DMK), Bangkok [duplicate] - People Walking in the Airport

Do I need a transit visa for Don Mueang Airport(DMK), Bangkok [duplicate] - Serious stylish bearded businessman in trendy suit holding bag and coat in hands standing near train on platform in railway station and looking away

Do I need a transit visa for Don Mueang Airport(DMK), Bangkok [duplicate] - Calm young African American male in casual clothes with big black bag and backpack looking at camera while walking along corridor of underground station against blurred passengers

Do I need transit visa for connecting flights Bangkok?

If you are transiting in a Thailand airport, you do not need an airport transit visa if: Your connecting flight is in less than 12 hours. Your flight is booked on the same ticket. You do not leave the international airport transit area.

Is transit visa required for airport?

Depending on your nationality, your purpose of visit, and which country you will be transiting to, you may not require a transit visa at all. You need to contact the airline and an embassy or consulate of your destination country to verify this information.

Does Suvarnabhumi airport require transit visa?

If you're transiting air side at Bangkok Suvarnabhumi Airport (BKK) with both the inbound and outbound flights on the same ticket you won't need any form of visa.

How do I get a transit visa at Bangkok airport?

Required Document

Passport or travel document with validity not less than 6 months.

Photograph of the applicant, taken within the past six months.

Evidence of travel from Thailand (confirmed air ticket paid in full).

Evidence of adequate finance (10,000 Baht per person and 20,000 Baht per family).

Bangkok Don Mueang airport (DMK) to Pattaya, Bangkok Don Mueang Airport GUIDE

Sources: Stack Exchange - This article follows the attribution requirements of Stack Exchange and is licensed under CC BY-SA 3.0.

Images: Andrea Piacquadio, Chait Goli, Andrea Piacquadio, Andrea Piacquadio