Amid the divorce rumours of Abhishek Bachchan and Aishwarya Rai Bachchan, producer-actor Nikhil Dwivedi, who worked with them in 'Raavan', opened up about their equation. "They are a married couple, so they naturally share the bond of husband and wife. We've never seen them apart either," said Nikhil. He further said the couple was extremely professional on set.