And the birthday wishes are pouring in on Twitter.  

maheep kapoor '@maheepkapoor HhhaaapPpyy 40th to the coolest guy I know @kjohar25 .. I love him xoxo

Genelia D'souza '@geneliadHappy birthday @kjohar25 lots n lots of love n love 2day n always

Ehsaan Noorani '@EhsaanSELHappy Birthday bro see this evening @kjohar25

taran adarsh '@taran_adarshMany happy returns of the day to @kjohar25 Have a super day and a fab year. Wish you love, luck, peace, happiness and good health always.

Kumar Taurani '@kumartauraniMany many happy returns of the day @kjohar25 GOD BLESS YOU....

Manish Malhotra '@ManishMalhotra1@kjohar25 happy b'day my dearest friend :-)

Bipasha Basu '@bipsluvurselfHappy Happy Birthday @kjohar25 .Love ur spirit!Looking fwd to d most amazing n anticipated party in a long time.I love bdays!Big Hug!