My parents are planning to visit me next month .They are indiam passport holders and will fly from Mumbai to Bkk.They are also planning to visit Singapore.They will get a SG and TH (Single entry tourist visa) donr from Mumbai itself

My qs is can they travel from Bkk to SG and get a arrival visa again done at Bkk airport on thier arrival from SG ?

The can apply for a Visa on Arrival on their return from Singapore. Click on the bold writing for details.

I should add that if their stay will be for more than 15 days, they may have to either apply for a seven day extension afterwards or simply apply for a Tourist Visa whilst in Singapore at the RTE there.

What they should have done is to apply for a Double Entry Tourist Visa whilst still in India.

It will depend on how long they stay each time. The Visa on arrival requires that they leave the country within 15 days and have proof in the form of an airline ticket out of the country within those 15 days.

It will depend on how long they stay each time. The Visa on arrival requires that they leave the country within 15 days and have proof in the form of an airline ticket out of the country within those 15 days.

I dont think they give double entry tourist visa at embassies

It will depend on how long they stay each time. The Visa on arrival requires that they leave the country within 15 days and have proof in the form of an airline ticket out of the country within those 15 days.

I dont think they give double entry tourist visa at embassies

Really? How did this Triple Entry Tourist Visa appear in my passport?

I hope you mean 'didn't think', rather than 'don't think'.