I will be visiting australia in a few months with my parents and cousins, on a tourist visa. One of my cousin is also an australian citizen.

My thai girlfriend will be able to show her return tickets and hotel bookings in australia. She also can show the visa officer copies of our passport and visas. She has visited India many times and can show those visits from her passport, and her photos with me and my parents. She has a flat worth 2 million in bangkok. She does not have an income though.

Will she get an australian tourist visa (2 weeks) on the basis of these?

If required my cousin in australia can provide any kind of sponsorship letter for her.

I will be visiting australia in a few months with my parents and cousins, on a tourist visa. One of my cousin is also an australian citizen.

My thai girlfriend will be able to show her return tickets and hotel bookings in australia. She also can show the visa officer copies of our passport and visas. She has visited India many times and can show those visits from her passport, and her photos with me and my parents. She has a flat worth 2 million in bangkok. She does not have an income though.

Will she get an australian tourist visa (2 weeks) on the basis of these?

If required my cousin in australia can provide any kind of sponsorship letter for her.

Put the application in and see.....

the sponsorship letter sounds like a good idea