Here's what they tweeted for the "Ek Villain" star:
Genelia D'Souza: Happy Birthday to the one person who I admire the most and adore the mostest... My Navra...The Father of my child...The bestest Ever @Riteishd.
Bipasha Basu: Happy birthday to one of the nicest n coolest costar of mine and a dear friend @Riteishd! Shine on! Hugs!
Kunal Kohli: Happy bday @Riteishd. As another friend of mine says #TwitterPeTohBuntaHai
Sujoy Ghosh: Happy birthday @Riteishd ... may you be the bestest father in the whole wide world.
Milap Zaveri: Happy birthday to my Pehla Pyar and Pehla Hero @Riteishd Have a wonderful year full of joy n success. Love u!
Arshad Warsi: Wishing all the happiness in the world to one of the funniest & the coolest guy in our industry @Riteishd a very Happy Birthday...
Neha Dhupia: #happybirthday @Riteishd ... Have a fantastic year daddy! Big love!
Vishal Dadlani: Happy Birthday, @Riteishd! Wish you the best of everything, always! #chestbump