Thanks Chhotu for starting out this thread on two of my favourites.
Posting a list of the duo combos (and ofcourse with other singers greats)
Kunwara baap --- 1974 --- Aa ri aa ja neendiya tu le chal kahi
Julie --- 1975 --- Dil kya kare jab kisi se
Zindagi --- 1976 --- Mamaji o mamaji are bol sa re ga ma
Zindagi --- 1976 --- Mamaji o mamaji - 2
Khatta meetha --- 1977 --- Mummy o mummy tu kab saas
Priyatama --- 1977 --- Koi roko na diwaane ko man machal raha
Swami --- 1977 --- Yaadon mein woh
Yehi hai zindagi --- 1977 --- Pyar ka badla mujhe dekho kaisa mila
Des pardes --- 1978 --- Nazrana bheja kisi ne pyar ka
Des pardes --- 1978 --- Ye des pardes
Des pardes --- 1978 --- Tu pee aur jee
Ek baap chhe bete --- 1978 --- Ek baap chhe bete 2
Ek baap chhe bete --- 1978 --- Ek baap chhe bete 3
Ek baap chhe bete --- 1978 --- Kahin jeevan ka yeh roop..ek baap chhe
Ek baap chhe bete --- 1978 --- O daddy don’t go
Swarg narak --- 1978 --- Leena o leena dil tu ne chheena
Vishwanath --- 1978 --- Jab jab jo jo hona hai
Baaton baaton mein --- 1979 --- Kahan tak yeh man ko
Do aur do paanch --- 1980 --- Meri zindagi ne mujhpe
Do aur do paanch --- 1980 --- Tu ne abhi dekha nahi
Man pasand --- 1980 --- Main akela apna dhun mein magan
Man pasand --- 1980 --- Man maani se hargiz na daro
Swayamvar --- 1980 --- Aap apne nashe mein jeete hai
Swayamvar --- 1980 --- Nari kuchh aisan aage nikal rahi hai
Shakka --- 1981 --- Sun mere yaar duniya wale apne bade
Yaarana --- 1981 --- Choo kar mere man ko
Yaarana --- 1981 --- Tere jaisa yaar kahan kahan aisa yarana
Yaarana --- 1981 --- Tere jaisa yaar kahan - slow
Yaarana --- 1981 --- Sara zamana haseno ka diwaana
Yaarana --- 1981 --- Bhole o bhole ---
Yaarana --- 1981 --- Tu rutha dil tuta ---
Hamari bahu alka --- 1982 --- Prem ki kya hain sun
Kaam chor --- 1982 --- Jogi o jogi bhaag mein mere likkha hai
Khuddaar --- 1982 --- Maa ka pyar behen ka pyar
Shriman shrimati --- 1982 --- O ri hawa dheere se chal sota hai munna
Shriman shrimati --- 1982 --- Tanha ise chhod kar..o ri hawa dheere 2
Waqt waqt ki baat --- 1982 --- Ek dil sau dushman phir jiye kaise hum
Nishaan --- 1983 --- Lahron ki tarah yaadein dil se takrati hai
Intehaa --- 1984 --- Ik gham par ik aur sahi ---
Intehaa --- 1984 --- Mana wafar karti...ik gham par ik aur sahi 2
Intehaa --- 1984 --- Hash pe ek kash ---
Ulta seedha --- 1984 --- Ae khuda aye khuda
Ulta seedha --- 1984 --- Churake dil ko le gayi
Zindagi jeene ke liye --- 1984 --- Udte udte pyaase pancchi thak gaye
Zindagi jeene ke liye --- 1984 --- Door ja rahe the..udte udte pyaase 2
Zindagi jeene ke liye --- 1984 --- Haathon ne hamesha..udte udte pyaase 3
Dil tujhko diya --- 1985 --- Jaaneman main koi teacher nahi
Ek daku sheher mein --- 1985 --- Bhul bhulaiyya sheher ki galiyan
Telephone --- 1985 --- Main shayari na karu
Bhagwan dada --- 1986 --- Tujhse pehele bematlab thi zindagani 1
Bhagwan dada --- 1986 --- Main tujhse bichhad ke..tujh se pehle 2
Intehaa --- 1984 --- Kaun jaane kab..ik gham par ik aur sahi 3
Maqaar --- 1986 --- Tu hi mera sapna tu hi meri manzil
Kaash --- 1987 --- Baad muddat ke hum tum mile
Begunaah --- 1993 --- Tere mere pyar ka aisa naata hai
Khatta meetha --- 1977 --- Rol gol makonisa makonisa kobara --- Amit
Kunwara baap --- 1974 --- Main hoon ghoda yeh hai gadi --- Mehmood
Ginny aur johnny --- 1976 --- Johnny johnny mera naam hai --- Mehmood
Lootmaar --- 1980 --- Piya hum saat mulk ka paani --- Mehmood
Muqaddar (new) --- 1978 --- Bade rangeen mehfil hai..tere chehre se --- Rafi
Duniya meri jeb mein --- 1979 --- Maine to maangi hai bas yeh 1 --- Rafi
Duniya meri jeb mein --- 1979 --- Maine to maangi hai bas yeh 2 --- Rafi
Aap ke diwaane --- 1980 --- Tera jalwa tauba hai tera jalwa --- Rafi
Aap ke diwaane --- 1980 --- Tumko khush dekh kar main bahut --- Rafi
Swayamvar --- 1980 --- Ek mahal ma chham chham karti --- Rafi
Khuddaar --- 1982 --- Arre o babu..hat ja baajoo nahi to uda --- Sayyad Hussain
Kaam chor --- 1982 --- Tumse badhkar duniya mein --- Alka
Babu --- 1983 --- Yeh mere jeevan tere liye hai jeevan ka --- Alka
Ek aur sikandar --- 1985 --- Dhadhka dil dil dilbar jaani ke liye --- Alka
Ek daku sheher mein --- 1985 --- Humnashe aake bahut door abhi --- Alka
Kaash --- 1987 --- O yaara tu pyaaro se hai pyaara --- Anupama
Kabzaa --- 1988 --- Tumse mile bin chain nahi aata --- Anupama
Udhaar ka sindoor --- 1976 --- O dil jaani bol meri rani --- Anuradha Paudwal
Ek hi raasta --- 1977 --- Bin saathi ke jeevan kya --- Anuradha Paudwal
Do aur do paanch --- 1980 --- Soti hai yeh raat so ne do --- Anuradha Paudwal
Gul-e-bakawaali --- 1982 --- Nafrat chhupi huyi hai logon ke pyar mein --- Anuradha Paudwal
Bhagwan dada --- 1986 --- Aaj hi dil tu de de...super fast love --- Anuradha
Charandass --- 1977 --- Ho yeh zamana agar raah roke to kya --- Asha
Ek hi raasta --- 1977 --- Akalmand ko..itni jaldi kahan jaate ho --- Asha
Inkaar --- 1977 --- Chhoro yeh nigahon ka ishaara --- Asha
Muqaddar (new) --- 1978 --- Ho teri thumri sun sun ke thak gaya --- Asha
Swarg narak --- 1978 --- Nahi nahi koi tumsa haseen --- Asha
Baaton baaton mein --- 1979 --- Suniye kahiye kehte sunte baaton baaton --- Asha
Duniya meri jeb mein --- 1979 --- Kuchh socho haan socho kuchh bolu --- Asha
Duniya meri jeb mein --- 1979 --- Thokar pe hai saara zamana --- Asha
Johnny i love you --- 1982 --- Aage aage dulha chale peeche peeche --- Asha
Waqt waqt ki baat --- 1982 --- Tujhko hi to woh haq hai ki jo tu chahe --- Asha
Babu --- 1983 --- Main kunwari albeli ja rahi thi kahin --- Asha
Nishaan --- 1983 --- Are sun sun sun meri jaan --- Asha
Rishta kagaz ka --- 1983 --- Kya ho gaya mujhe poocho na jaanejaan --- Asha
Jaag utha insaan --- 1984 --- Aayi parbaton pe jhoomti hawa --- Asha
Jaag utha insaan --- 1984 --- Teri zindagi ki raagini par mera naam likh --- Asha
Zindagi jeene ke liye --- 1984 --- Ho raaz dil khol de dil mein hai so bol de --- Asha
Dil tujhko diya --- 1985 --- Zindagi chand dino ki hai badi --- Asha
Ghar sansar --- 1986 --- Chot lagi kahan yahaan wahaan
Tumhari kasam --- 1978 --- Main husn ka hoon diwaana ---
Kunwara baap --- 1974 --- Jai bholenath jai ho prabhu --- Lata
Julie --- 1975 --- Bhool gaya sab kuchh yaad nahi ab kuchh --- Lata
Zindagi --- 1976 --- Umra to pyar karne ki aayi --- Lata
Doosraa aadmi --- 1977 --- Aankhon mein kajal hai kajal mein mere dil --- Lata
Doosraa aadmi --- 1977 --- Nazro se keh do pyar mein milne ka mausam --- Lata
Doosraa aadmi --- 1977 --- Aao manayein jashn-e-mohabbat --- Lata
Khatta meetha --- 1977 --- Thoda hai thode ki zaroorat hai --- Lata
Khatta meetha --- 1977 --- Chhoti si yeh duniya mere..thoda hai 2 --- Lata
Mama bhanja --- 1977 --- Suno rani tumne der laga di --- Lata
Yehi hai zindagi --- 1977 --- Dilruba aa meri baahon mein aa --- Lata
Des pardes --- 1978 --- Jaisa des vaisa bhes phir ka darna --- Lata
Tumhari kasam --- 1978 --- Ae ladki pyar karegi tu mera aetbaar 1 --- Lata
Tumhari kasam --- 1978 --- Ae ladki pyar karegi tu mera aetbaar 2 --- Lata
Vishwanath --- 1978 --- Duniya ne mujhe tadpaya --- Lata
Kaala patthar --- 1979 --- Ik raasta hain zindagi jo tham gaye to --- Lata
Mr. Natwarlal --- 1979 --- Pardesia yeh sach hai piya --- Lata
Lootmaar --- 1980 --- Aaj ka din koi bhoole na --- Lata
Man pasand --- 1980 --- Sa re ga ma pa ma ga re ma pa --- Lata
Man pasand --- 1980 --- Charu chandra ke chanchal chitwan --- Lata
Daasi --- 1981 --- Premi sabhi hote hai diwaane --- Lata
Gul-e-bakawaali --- 1982 --- Koi apna na huaa saari zindagi ke --- Lata
Johnny i love you --- 1982 --- Jaani dilbar jaani yeh dil leke dhonka de --- Lata
Johnny i love you --- 1982 --- O meri gali ki ladke..aa samne maidan --- Lata
Kaam chor --- 1982 --- Tujh sang preet lagayi sajna --- Lata
Kaam chor --- 1982 --- Tum mere swami main tumhre dasi --- Lata
Kaam chor --- 1982 --- Maal de gulaal mohe aayi holi aayi re --- Lata
Khuddaar --- 1982 --- Oonche neeche raaste aur manzil teri --- Lata
Khuddaar --- 1982 --- Oonche neeche raaste aur manzil teri --- with Child voices
Khuddaar --- 1982 --- Mach gaya shor saari nagri re --- Lata
Khuddaar --- 1982 --- Angrezi mein kehete hai ke i love --- Lata
Khuddaar --- 1982 --- Disco 82..main ek disco tu ek disco --- Lata
Shriman shrimati --- 1982 --- Main tera husband tu meri wife --- Lata
Shriman shrimati --- 1982 --- Ek nasihat mere pyaro sun lo --- Lata
Shriman shrimati --- 1982 --- Sabke aage humko nachaya kitna ooncha --- Lata
Waqt waqt ki baat --- 1982 --- O saathia re tere mere nain mile --- Lata
Babu --- 1983 --- Aisa rang de piya daag na lage kabhi --- Lata
Nishaan --- 1983 --- Humsa na paayegi jahan bhi tu jaayegi --- Lata
Nishaan --- 1983 --- Aankhiyon hi aankhiyon mein --- Lata
Nishaan --- 1983 --- Beliya ab to yeh bahar koi gul naya --- Lata
Rishta kagaz ka --- 1983 --- Allah teri shaan jab tu meherbaan --- Lata
Ulta seedha --- 1984 --- Yaar ki gali din bahar ka haaye --- Lata
Ek aur sikandar --- 1985 --- Are aaja saathiya manayein jhoom ke --- Lata
Doosraa aadmi --- 1977 --- Arre jaan meri ruth gayi --- Pamela Chopra
Kaash --- 1987 --- Phool ye kahan se aaye hain bolu --- Sadhna Sargam
Begunaah --- 1993 --- Tere mere pyar ka aisa naata hai --- Sadhna Sargam
Dillagi --- 1978 --- Kar gayi mast mujhe phagun ki --- Suman
Yaadon ki zanjeer --- 1984 --- Mumkin hai naiya se..mushkil hai nadiya se --- Suman
Khatta meetha --- 1977 --- Khatta meetha...yeh jeena hai angoor ka --- Usha
Priyatama --- 1977 --- Main jo bolu haan to haan --- Usha
Ginny aur johnny --- 1976 --- Johnny ko maine to part - 1 --- Vijeyta
Ginny aur johnny --- 1976 --- Jab tu bada...johnny ko maine to part - 2 --- Vijeyta
Ginny aur johnny --- 1976 --- Sun jinniya arre ja --- Vijeyta
Kunwara baap --- 1974 --- Aa ri aa ja nindiya tu le chal kahi --- Lata, Mehmood
Doosraa aadmi --- 1977 --- Kya mausam hai ae diwaane dil --- Lata, Mohd Rafi
Khatta meetha --- 1977 --- Tumse mila tha pyar kuchh achhe naseeb --- Lata, Rakesh Roshan
Des pardes --- 1978 --- Arre nazar lage na saathiyon --- Amit, Manhar, Vijay
Muqaddar --- 1978 --- Suraj se aankhen mila --- Asha, Mohd Rafi, Usha
Aap ke diwaane --- 1980 --- Mere dil mein jo hota hai --- Lata, Mohd Rafi
Aap ke diwaane --- 1980 --- Hum to aap ke deewane hai bade mastane --- Mohd Rafi, Amit
Do aur do paanch --- 1980 --- Prem se humko jeene do --- Lata, Amit, Mehmood
Lootmaar --- 1980 --- Hans too hardam --- Varsha/shivangi
Ek aur sikandar --- 1985 --- Ae ma khuda to nahi tu magar --- Alka, Manna Dey
Ulta seedha --- 1984 --- Arre jhoomo he naacho..uncle robert --- Asha, Bonny Remedious
Ghar sansar --- 1986 --- Jeevan ke raaste mein jeet unki jo chalte --- Alka, Mohd Aziz