The 49-year-old star is reuniting with his hit co-star after Kara Johar's "My Name Is Khan" in 2010.
He shared a collage of the two on Twitter, tracing their journey from 1993 to 2015.
"Somedays it's good to ponder over the journey... As you embark upon a new destination," Shah Rukh captioned the picture.
Kajol too posted a picture of the duo on her Twitter account, which she earlier claimed was only for promoting social awareness about the benfits of hand washing.
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Earlier, Shah Rukh had tweeted a picture of himself, Kajol and Rohit and called their team "ageless."
"'Count your age by friends, not years. Count your life by smiles, not tears'- Lennon. By that maxim this team is ageless," the star had captioned the photo, quoting John Lennon
The comedy-drama, will be Shah Rukh's second outing with Rohit after 2013 hit "Chennai Express".
The film, which also stars Varun Dhawan and Kriti Sanon, is scheduled to release this Christmas.