Bollywood actor Hrithik Roshan, on Sunday sent a warm birthday wish to his director Siddharth Anand. Taking to Instagram, the 'Krrish' actor dropped a picture, which he captioned, "Hi man, let's get the ball rolling on the rest of the movies we waiting to make. Enuff! O and happy birthday :) Chal bye."

In the picture, the 'Dhoom 2' actor could be seen standing beside the 'Bang Bang' director with his hand on his shoulder. The 'Krrish 3' actor is all set to collaborate with director Siddharth once again for an aerial action thriller film 'Fighter' which also stars Deepika Padukone and Anil Kapoor in the lead roles.