Lakshmi [1982] - Music by Usha Khanna

I recently discovered LAKSHMI contain the final (and perhaps finest) songs written by Sahir Ludhianvi.

Lakshmi is a multi-lyricist soundtrack and it contains songs written by Kaifi Azmi and Indivar too.

I need help in establishing the playback artists and lyricist of each song. Please listen to the mp3 and give your suggestions.

I would love to speak to someone who have the LP record or original audio cassette of this title.

SONG 1 O Ramen Kori Kaye Rangon Ka Mausam Aaya
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Holi duet. Who is the lyricist? Who are the playback artists?

SONG 2 Jalwon Se Dil Bahlalo Zamanewalon
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Mujra dance. Who is the lyricist? Who is the playback artist?

SONG 3 Kabhi Deke Khushiyan Kabhi Deke Gham
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Mujra dance. Who is the lyricist? Who is the playback artist?

SONG 4 Sham Peene Ki Phir Na Aayegi
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Mujra dance. Who is the lyricist? Who is the playback artist?

SONG 5 Kya Baat Hai Subhan'Allah
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Qawali duet. Who is the lyricist? Who are the playback artists?

SONG 6 Seeta Bhi Jahan Sukh Pa Na Sakhi
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Sad background song. Who is the lyricist? Who is the playback artist?

Playback is given by Lata Mangeshkar, Asha Bhosle, Amit Kumar and Mahendra Kapoor, but I am not sure who sang which song!

Your help is appreciated!