Hong Kong-born actress and former model Kaif is currently filming Dhoom 3 in Chicago with Rai Bachchan's husband Abhishek Bachchan.
"Aishwarya dropped in on the sets to see her husband Abhishek, who is shooting for the film. She had come with their daughter Aaradhya to spend some time with him," a source told Hindustan Times.
"Since Katrina is also shooting for the movie, the day she landed, Aishwarya was there too. They just exchanged a cursory polite smile. They didn't speak.
"It was pretty much like how it was in the past, when the two never interacted."
The pair have been unfriendly since Kaif dated Rai Bachchan's former boyfriend Salman Khan, according to the paper.
In 2010, Khan is said to have vetoed appearances by Rai Bachchan and her Guzaarish co-star Hrithik Roshan on Bigg Boss to promote the movie.
The Ek Tha Tiger star admitted recently that he thought falling in love with Kaif would be "easy".