So here is a follow up question -
We are saying that if you happen to be on a flight from India or landing in Bangkok around the time there are flights coming in from India and you have to go through VOA, there might be a long line at the VOA queue and you might be better off getting a visa beforehand.
Does the same phenomenon happen with flights coming in from Russia and Taiwan ? Strange thing is - this does not happen with flights from mainland China as Chinese authorities do not allow citizens to leave the country without a visa beforehand in the passports, so Chinese citizens arriving into BKK direct from Beijing/Shanghai etc. would have visa on their hand already.