"You might like to paint, but for me you are the greatest living painting ever, whch even a Vincent van Gogh n Leonardo da Vinci can;t paint without you posing," Varma posted on his Twitter page Tuesday.
Wishing her for her special day, he posted: "Happy birthday to the most beautifullest woman and the most fantaastikest actress in the whollest world."
The filmmaker directed the versatile actress in 1991 Telugu film "Kshana Kshanam".
To Shekhar Kapur, who had helmed "Mr. India", one of Sridevi's best films so far, RGV said: "She was always a star, but in 'Mr. India', you showcased Sridevi like in a way only an artiste can present art."
Mumbai Roundup: 9 incidents that took place this week
Photos: Ajay Devgn, Parineeti, Tabu at 'Golmaal Again' trailer launch
Photos: Dipika Pallikal Karthik oozes oomph in bikinis and sarees
Photos: Kareena Kapoor Khan's grand birthday bash
Photos: 'Dangal' girls Sanya Malhotra, Fatima Sana Shaikh's dinner outing