The British qualifier will meet Isha Lakhani in the final of the NECC-ITF tournament.
The top seeds won the men's and women's singles titles respectively at the DSCL Open National Tennis Championships.
The fourth seed Thai beat top seed Isha Lakhani 2-6, 6-2, 6-3 in the final of the ITF women's tennis tournament.
The duo completed an Indian sweep winning the boy's and girl's event respectively of the Asian Junior Tennis Championship.
The unseeded Thai beat the eighth seeded Bulgarian to enter the quarter-finals in the NECC-ITF women's tournament.
The Indian lass was beaten by top seed Suchanan Viratprasert of Thailand in the quarter-finals of the \n\nITF tournament.
The third seed easily beat Isha Lakhani in the final.
Unseeded Yamini Thukkaiandi caused an upset, beating seventh seed Preety Rao in the ITF tournament.
She beat Ankita Bhambri 6-4, 4-6, 6-2 scoreline in a keenly-contested match at the DLTA courts in New Delhi.
It has sought the ITF's approval to field the US-born Indian.
The top seed entered the semi-finals of the ITF women's tennis event in Delhi.\n\n
The top two seeds were beaten by Chen-Huan Yi of Chinese Taipei and Arun Prakash Rajagopalan respectively in the semi-finals of the Asian junior tennis championships.
The semi-final line-up for the ITF Masters is: Lakhani vs Shruti Dhawan; Ankita Bhambri vs Liza Pereira.
The fourth seed was beaten by sixth-seeded teen sensation Ankita Bhambri in the quarter-final of the ITF tournament.
The Delhi girl stormed into the semifinals with a 6-4, 2-6, 6-2 win over Isha Lakhani at the $10,000 ITF Women's Championship.