According to an insider, all's not well We hear they've had a fallout between Ajay Devgan and his Halla Bol director Raj Kumar Santoshi who are not playing buddy-buddy anymore.

A verbal spat triggered off tension on the Halla Bol sets.

Our source reveals, "Normally, Ajay lets the director call the shots.

He's a very chilled-out person and has no ego hassles. But on that particular day, there was a heated exchange of words between them. Santoshi was already riled because of Ajay's date problems, because of which other projects like London Dreams has been stalled, so tempers flew over a small disagreement.

However, the fight didn't last long. They soon sorted their differences as they have a healthy respect for each other. But it's obvious there is still a distinct aloofness between the two."

The Devgan camp maintains, "There is no fallout between Ajay and Santoshi. Ajay has the highest regard for Santoshi as a filmmaker and would never interfere with his work."