An earlier waiver since Nov. 10 last year ends this Friday.
Indian and Taiwanese passport holders can enter Thailand without a visa and stay for a maximum of 30 days, Bloomberg reported.
In the first four months of this year Thailand received more than 12 million foreign visitors, a 39% increase from the same period last year, according to its Ministry of Tourism and Sports.
India was among the five largest sources of visitors along with China, Malaysia, Russia, and South Korea.
The Thai government expects 700,000 Taiwanese tourists to come this year.