As seen in the video uploaded on YouTube, the couple were holding hands while Dimple smoked. They were sitting on a bench at a bus stop.
On Wednesday, the video was pushed on Twitter where it was picked up by the social media platform's mass users.
Sunny Deol and Dimple Kapadia have been allegedly together for decades now, even though Sunny is married with two kids. They stopped doing movies together after 1991 release "Narsimha" as they wanted to keep their affair private.