Kishore also worked with other composers including Rajesh Roshan, Sapan Chakraborty and Bappi Lahiri. Kumar sang "Bhool Gaya Sab Kuchh" (duet with Lata Mangeshkar) and "Dil Kya Kare Jab Kisise" for Rajesh Roshan's film "Julie". Their other songs include "Yaadon Mein Woh" from "Swami", "Chhookar Mere Man Ko Kiya Toone Kya Ishaara" from "Yaarana", "Kaha Tak Ye Manko Andher Chalenge" from "Baton Baton Mein", "O Yara Tu Yaro Se Hai Pyar", and "Laharon Ki Tatah Yaadien" (1983) and "Kahiye, Suniye" (duet with Asha Bhosle) from "Baton Baton Mein". Bappi Lahiri also recorded many songs with Kumar, including "Pag Ghunghroo Bandh" from "Namak Halaal" (1982), "Manzilen Apni Jagah Hai" from "Sharaabi" (1984), "Chalate Chalte Mere Ye Geet Yad Rakhana" from "Chalte Chalte" (1975) and "Saason Se Nahi Kadmose Nahi" from "Mohabbat" (1987) and duets with Lata Mangeshkar such as "Albela Mausam" and "Pyar Ka Tohfa" from "Tohfa" (1984). The Kishore and Bappi pair also recorded hits in Bengali, including "Chirodini Tumi Je Amar" from "Amar Sangi" (1987) and "E Amar Gurudakshina" from "Gurudakshina" (1987). Another Bengali musician was Ajay Das, who composed many hit songs in Kumar's voice. He also recorded a duet song "Hello Hello Kya Haal Hai" with Asha Bhosle for Naushad in 1975 for the movie "Sunehra Sansar", the only song of Kishore. He also worked with music directors Basu and Manohari Singh for duets such as "Wada Karo Jaanam" and "Dariya Kinare" for the film "Sabse Bada Rupaiya" and "Aa Humsafar" for the film "Chatpatee".