Filmmaker Karan Johar, who turns 38 Tuesday, says he is "overwhelmed with all the love" that his friends and colleagues showered on him on birthday.

"Overwhelmed with all the love that comes my way today... A huge thank you to twitterverse for all the wishes...love you all....always, " Karan, who is presently in New York, posted on his microblogging site.

From Madhur Bhandarkar and Uday Chopra to Tarun Mansukhani and Manish Malhotra, everyone wished Karan, known for giving hits like "Kuch Kuch Hota Hai", "Kabhi Khushi Kabhie Gham" and "Kal Ho Naa Ho".

"Many happy returns of the day Karan. God bless you with more and more success, " wrote Bhandarkar.

Uday Chopra: "Happy birthday Karan... lots of love, luck and other things I can't mention on Twitter ;-)."

Genelia D'Souza: "Here's wishing Karan a very, very happy birthday... may you have a great day and a fantastic year... lots of love always."

Riteish Deshmukh: "Wishing you a very Happy Birthday, may you get everything you wish for... lots of love."

Vishal Dadlani: "Hope you have the best year of your life so far, and then successively better ones! :-). Happy Birthday!!"

Ana Singh: "Let's wish the wonderful person Karan Johar a glorious birthday and send him love, prayers and blessing."

Punit Malhotra: "Big day today!!! It's Karan Johar's birthday..."

Ehsaan Noorani: "Happy Birthday Karan."

Manish Malhotra: "It's my dearest friend karan's birthday today :-)."

Shreya Ghoshal: "Happy Birthday Karan... loads of love!! May there be plenty of love, happiness and goodness in your life!! Have a rocking year ahead!"

Shekhar Ravijiani: "Wish you a rocking birthday Karan! Have a good year and more power to you!"

Amrita Arora: "Happy birthday Karan... have a super day wherever you are...keep entertaining us personally and professionally... all the love n luck."

Tarun Mansukhani: "Happy birthday Karan! So much to wish for you and so much to thank you for. Will tell you in person."

Celina Jaitly: "Happy Birthday Karan... have a good one."