Ranbir, who has been dating Katrina for sometime

Ranbir, 33, who dated Deepika for a year, shares an amicable relationship with the actress post their split. "Ranbir can't get married till I allow it...," Deepika told PTI.

To which Ranbir, who has been dating Katrina for sometime, added, "It's a very big question about my life. I completely believe in the institution of marriage. When I will get married, I will let the whole world know about it."

• Rabir
• Deepika
• Katrina
• Ranveer 

Imtiaz Ali's Tamasha is Ranbir and Deepika's third film together after Bachna Ae Haseeno and Yeh Jawani Hai Deewani.

The co-stars took a train ride from Mumbai to Delhi to promote their upcoming film, which is slated to hit the screens this Friday.

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Ranbir and the Piku star started their career in 2008 with Sanjay Leela Bhansali's Saawariya and Shah Rukh Khan starter Om Shanti Om, respectively.

"It feels just like yesterday. I saw Deepika outside Saawariya sets walking across to Om Shanti Om set. Eight years have passed and we have no idea. We have worked hard and reached the point we have desired for in our lives," Ranbir said.

[pcarousel] [item url="Image_Link_URL" src="Image_URL" title="Image_title"]Content Description[/item] [item url="Image_Link_URL" src="Image_URL" title="Image_title"]Content Description[/item] [item url="Image_Link_URL" src="Image_URL" title="Image_title"]Content Description[/item] [item url="Image_Link_URL" src="Image_URL" title="Image_title"]Content Description[/item] [item url="Image_Link_URL" src="Image_URL" title="Image_title"]Content Description[/item] [/pcarousel] For Deepika, 29, Ranbir is still the same person that she met eight years ago.

"It's a very unique situation. We have heard about actors debuting in the same year but actors debuting on the same day is something which does not happen normally. I hope he never changes. But it has been an amazing journey.
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Questions pertaining to Ranbir Kapoor's marriage to Katrina Kaif have been the talk of the town but his Tamasha co-star Deepika Padukone says the actor will not wed till the time she gives her nod.