The 30-year-old star shared a picture of herself sporting the engagement ring, a huge solitaire.
The actress captioned the image, "He asked and I said Yes."
She, however, did not reveal her fiance's name.
Esha previously reportedly dated director Punit Malhotra of "I Hate Luv Storys" fame. She will be next seen in "Hera Pheri 3" and "Rustom".