I am a fan of kumar sanu sir. He sang many melodious and romantic songs in Hindi. When I am stressed or depressed his songs works as a medicine to me. He is having a great voice. All his songs are good. It is difficult to me pickup best songs from them
Some of my favorite songs of Kumar Sanu are
Tu Meri Zindagi hai-Aashiqui( 1989)
Mera Dil Bhi Kitna-Saajan( 1991)
Tumse Milne Ko Dil-Phool Aur kaante( 1991)
Teri Ummed Tera Intezar, Sochenge Tumme Pyar-Deewana( 1992)
Baazigar O Baazigar-Baazigar( 1993)
Ek ladki Ko Dekha To-1942: Love Story( 1994)
Chura Ke Dil mera-Main Khiladi Tu Anari( 1994)
Do Dil Mil Rahe Hain, Meri Mahabooba-Perdes( 1997)
Ladiki Badi Anjani Hai-Kuch Kuch Hota Hai( 1998)
Tum Dil Ki Dhadkan Mein-Dhadkan( 2000)
Dard Karaara-Dum Laga Ke Haisha( 2015)