The hectic promotional tour for his upcoming film, 'Drishyam', is said to have taken a toll on Ajay Devgn. Sources close to the actor have revealed that he sought urgent medical assistance as soon as he reached Delhi on Sunday.

Shriya Saran (left) and Ajay Devgn at a promotional event for 'Drishyam' in Delhi on Tuesday. Pic/Yogen Dhah