Because her beauty has been spoiling for the past few years.
After dating a foreigner and married to her love who does not belong to India, may be she changed her habits and her teeth has been changing.
From here to
Now she changed a lot
Her skin color started changing
And not only in Tamil Film Industry , she isn’t getting that much offers from Telugu Film Industry.
So her next films are
RRR- Cameo appearance in Telugu
Naragasooran- Cameo appearance in Tamil
Sandakkari- Taml film
Tadka- Hindi Film