The mystery thriller, co-written by Ghosh, revolved around a pregnant woman named Vidya Bagchi, who was in search of man in the city of Kolkata. The role was effectively played by Vidya Balan.
Arjun mentioned that he is looking forward to joining the "Kahaani 2" team.
"All the best Sujoy Ghosh and the whole team of 'Kahaani 2', look forward to joining you guys soon. Love and luck," he wrote.
The 2012 film also featured Parambrata Chatterjee, Nawazuddin Siddiqui, Indraneil Sengupta, Dhritiman Chatterjee and Saswata Chatterjee among others.