Yes. Thai tea of Thailand and masala chai of India are different from each other even though they are both made with black tea and have some similar spices and milk products. First of all, Thai tea is made by steeping black tea and spices, while masala tea is made by boiling them in milk. So, masala tea has a tangier flavor and can feel bitter for some. Secondly, condensed milk is used in Thai tea but regular milk is in masala tea. So, Thai tea is creamier than masala tea. Finally, as for the spices, masala tea has ginger and black pepper in addition to the spices used in Thai tea. So, it is more flavorful than Thai tea, but ginger may feel too tangy to drink for some people.