Movie : Farz
Singers : Mohammad Rafi
Song : Baar Baar Din Ye Aaye
Lyricist : Anand Bakshi
Actors : Jeetendra, Babita, Aruna Irani
Music Director : Laxmikant Kudalkar, Pyarelal

Happy birthday to you
Happy birthday to you
Happy birthday to  Sunita
Happy birthday to you

Baar baar din ye aaye
baar baar dil ye gaaye
Baar baar din ye aaye
baar baar dil ye gaaye
Tu jiye hazaaron saal
ye meri hai aarzoo
Happy birthday to you
Happy birthday to you
Happy birthday to  Sunita
Happy birthday to you

Baar baar din ye aaye
baar baar dil ye gaaye
Tu jiye hazaaron saal
ye meri hai aarzoo
Happy birthday to you, oh ho
Happy birthday to you, aa ha
Happy birthday to  Sunita
Happy birthday to you

Beqaraar hoke, daaman thaam loon main kiska
Beqaraar hoke, daaman thaam loon main kiska
Kya misaal doon main teri, naam loon main kiska
Nahi nahi aisa haseen koi nahi hai
Jis pe ye nazar ruk jaaye be misaal jo kehlaaye
Tu jiye hazaaron saal
ye meri hai aarzoo
Happy birthday to you
Happy birthday to you
Happy birthday to  Sunita
Happy birthday to you

auron ki tarah kuchh main bhi
tohfa aaj laata
auron ki tarah kuchh main bhi
tohfa aaj laata
Main teri haseen mehfil mein phool leke aata
Jinhe kahan usse kya hai phoolon ki zaroorat
Jo bahaar khud kehlaaye har kali ka dil dhadkaaye
Tu jiye hazaaron saal
ye meri hai aarzoo
Happy birthday to you
Happy birthday to you
Happy birthday to  Sunita
Happy birthday to you

phoolon ne chaman se tujhko hai salam bheja
phoolon ne chaman se tujhko hai salam bheja
taaron ne gagan se tujhko ye payaam bheja
dua hai ye khuda kare aye shokh tujhko
chand ki umar lag jaaye
aaye to qayamat aaye
Tu jiye hazaaron saal
ye meri hai aarzoo
Happy birthday to you, oh ho
Happy birthday to you, aa ha
Happy birthday to  Sunita
Happy birthday to you

Baar baar din ye aaye
baar baar dil ye gaaye
Tu jiye hazaaron saal
ye meri hai aarzoo
Happy birthday to you, oh ho
Happy birthday to you, aa ha
Happy birthday to  Sunita
Happy birthday to you

The song is a very special song in the category of Birthday Occasion. It is from the film Farz which came in 1967 and this song is in the voice of Mohd. Rafi.