Apart from the Burmans, Kumar worked with other famous music directors too. The composer duo Laxmikant–Pyarelal (L-P) composed many songs sung by him, including "Mere Mehboob Qayamat Hogi" from "Mr. X in Bombay", "Mere Naseeb Mein Aye Dost" from "Do Raaste", "Yeh Jeevan Hai" from "Piya Ka Ghar", "Mere Dil Mein Aaj Kya Hai" from "", "Nahi Mai Nahi Dekh Sakta" from "Majboor", "Mere Diwanepan Ki Bhi" from "Mehboob Ki Mehndi", "Naach Meri Bulbul" from "Roti", "Chal Chal Chal Mere Haathi" from "Haathi Mere Saathi" and "Tu Kitne Baras Ki" from "Karz". L-P also worked with Kishore and Mohammed Rafi on duets for the films "Zakhmee", "Dostana", "Ram Balram" and "Deedaar-E-Yaar". L-P composed "I Love You (Kaate Nahin Katate Yeh Din Yeh Raat)" for "Mr. India" (1987), a duet with Kishore and Alisha Chinoy. Salil Chowdhury recorded songs SUCH AS "Koi Hota Jisko Apna" from "Mere Apne" and "Guzar Jaaye Din Din" from "Annadata". Ravindra Jain recorded "Ghungroo Ki Tarah" and the duets "Le Jaayenge Le Jaayenge" from "Chor Machaye Shor" and "Tota Maina Ki Kahani" from "Fakira". Shyamlal Mitra recorded a duet of Kishore with Asha – Sara Pyaar Tumhara for the film "Anandshram".