The model-turned-actress made her big screen debut opposite Khan in the Farah Khan directed film Om Shanti Om in 2007. The film saw her in a double role.
"It was glad to be working with him again. He has become my very good friend today. He is someone I trust personally and professionally. I am sure he will always be there for me whenever I need him," said Deepika.
Chennai Express directed by Rohit Shetty and produced by Gauri Khan under her production banner Red Chillies Entertainment will release on August 8.
"It was lot of fun working on the film. It was a great experience. Rohit is known for making comedy films and this film as well has turned out to be very entertaining. It is very different from what he has done. I am quite excited about its release," said Deepika.
The film is the story about a man's journey from Mumbai to Rameswaram and what happens during the journey.
The 27-year-old actress will be seen next in Sanjay Leela Bhansali's much talked about film Ram Leela, which is said to be an adaptation of Shakespeare's epic love story Romeo and Juliet, set in violent times.
"Every director is a task master as they all churn out the best from us. They want to make a good film," Deepika said on Bhansali.
Deepika has been paired opposite Ranveer Singh for the first time in the film and gossip mills are abuzz with their close equation. But Deepika puts all specualations to rest.
"He is a fabulous actor, he is very talented. It was a great experience working with him. He is a great co-star, a great person and nothing else.People create hype when the film is about to release.People should understand it is all about onscreen chemistry.I don't feel the need to go and clarify things to people."