"The story is the inspiration behind romance. That song 'Suraj Hua Madham' we shot in the hot climate... in Egypt while this song 'Gerua' we shot in cold temperature in Iceland. I think it is about expression of love," SRK said when asked about the similarities between the two songs.

The song 'Gerua' was shot at various locations that looked exotic on screen. But Kajol reveals, "It was very challenging as we shot in Iceland...we were freezing."

Sharing similar views, the 'Chennai Express' star says, "It was difficult to shoot the song. It took two-three hours to set the song... Rohit Shetty, our director, wanted wider shot so we had helicopter to capture the moments."

The event was held at 'Maratha Mandir', a theatre in Mumbai Central here, where SRK-Kajol's blockbuster film 'Dilwale Dulhania Le Jayenge' was running for over 1,000 weeks.

The event saw actor Varun Dhawan and Kriti Sanon dancing to hit tracks of the legendary pair, 'Suraj hua Madham', 'Tujhe dekha toh', 'Yeh Kaali Kaali Aakhen' and others.

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