Does anyone know what the rules are regarding land crossings and Indian nationals. My understanding is that Indian nationals come in on a 15 day visa on arrival. Are they able to undertake a land crossing to get a further 7 days or whatever is available, or do they have to fly out and fly back in. I ask this as we often have a number of Indian clients, and they sometimes want to extend their stays.

Indian Nationals must apply for a Visa on Arrival - there are 24 Immigration Check Points (some are land borders) authorised to issue these - see this MFA Website link for the list of checkponts and conditions. http://www.mfa.go.th...482.php?id=2491

You cannot get an extension and must have an airticket out within 15 days. Not sure how they will deal with land borders, but keep in mind that you will also need to meet the entry requirements of the other country.