Kajol's pairing with Shah Rukh has always reflected a beautiful, inimitable friendship that has only grown over the years

Bollywood actors Kajol and Genelia D'Souza, who celebrate their birthday Friday, received wishes from tinsel town through social networking site Twitter.

While Kajol turned 37, Genelia touched 24.

Filmmaker Karan Johar, whose directorial debut "Kuch Kuch Hota Hai", and several subsequent films featured Kajol, posted: "Its KAJOLS birthday!!! She's not on twitter...but give her love people...she is truly special!! The best actress...and a woman of substance!"

Filmmaker Kunal Kohli, who worked with her in "Fanaa", wrote: "Let's all wish Kajol a very happy bday, truly one of the best and most talented actresses we've ever had. An all time great."

Genelia celebrated her birthday on the sets of "Tere Naal Love Ho Gaya", with co-star and rumoured beau Riteish Deshmukh and the crew of the film.

Riteish wished her on Twitter, saying: "Here's wishing my most favourite @geneliad a very happy birthday. The smile of her face is d reason everyone on d sets is smiling - including me 9 yrs ago v celebrated @geneliad's bday on the sets of our debut film TMK ('Tujhe Meri Kasam') n today on d sets of TNLHG- feels like yesterday- have a great one girl (sic)."

Others like Minissha Lamba, Siddharth, Neil Nitin Mukesh and Rana Daggubati wished the young actress, who made her debut with "Jaane Tu...Ya Jaane Na".

They first struck gold over sixteen years ago, in the eternal Dilwale Dulhaniya Le Jayenge. After that epic romantic story, they went on to give us Kuchh Kuchh Hota Hai, Kabhie Khushi Kabhie Gham and My Name Is Khan.

Kajol's pairing with Shah Rukh has always reflected a beautiful, inimitable friendship that has only grown over the years. Which is why the King Khan's birthday wish to her, via Twitter, is more heartfelt than any other we've seen so far.

Coming up: A look-see at Kajol's memorable journey on the silver screen.