well heard lena hoga from th cd my roomie girish bought
well .. I was listening to the song.. Len hoga...for people who have not heard the song..
here is the lyrics for you .. (but then you should knw Hindi )

Phoolon Ke Rang Se Dil Ki Kalam Se, Kujh Ko Likhi Roj Paati
Kaise Batao Kis Kis Tahar Se, Pal Pal Mujhe Tu Satati

Tere Hi Sapne Lekar Ke Soya, Teri Hi Yaadon Me Jaaga
Tere Khayaalon Me Uljha Raha Hoon, Jaise Ke Mala Me Dhaaga

Haan~~ Badal Bijli Chandan Paani Jaisa Apna Pyar, Lena Hoga Janam Hume Kai Kai Baar
Haan~~ Itna Madir Itna Madhur Tere Mera Pyar, Lena Hoga Janam Hume Kai Kai Baar

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Saanson Ke Sargam Dhadkan Ki Beena, Sapnon Ki Geetanjali Thu
Man Ki Gali Me Mehke Jo Har Dum, Aisi Juhi Ki Kali Thu

Chota Safar Ho Lamba Safar Ho Sooni Dagar Ho Ya Mela
Yaad Thu Aaya Man Ho Jaaye Bheed Ke Beech Akela

Haan~~ Badal Bijli Chandan Pani Jaisa Apna Pyar, Lena Hoga Janam Hume Kai Kai Baar
Haan~~ Itna Madir Itna Madhur Tere Mera Pyar, Lena Hoga Janam Hume Kai Kai Baar

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Purab Ho Pachhim Uttar Ho Dakshin, Thu Har Jagah Muskuraaye
Jitna Hi Jaaon Main Door Tujh Se, Utni Hi Thu Paas Aaye

Aandhi Ne Roki Pani Ne Toka, Duniya Ne Hans Kar Pukara
Tasveer Teri Lekin Liye Main Ghar Aaya SabSe Kinara

Haan~~ Badal Bijli Chandan Pani Jaisa Apna Pyar, Lena Hoga Janam Hume Kai Kai Baar
Haan~~ Itna Madir Itna Madhur Tere Mera Pyar, Lena Hoga Janam Hume Kai Kai Baar

...Kai Kai Baar...Kai Kai Baar