After singing Chand Phir Nikla (Paying Guest) for S D Burman in 1957, Lata Mangeshkar did not sing for him till 1962. There was a misunderstanding between the two. They were brought together again by SD's son R D Burman for Pawan Diwani (Dr. Vidya).
Both these songs are timeless. Nutan is the actress in the first song and Vaijayinantimala is the dancer in the second.
This long gap in collaboration between Lata and SD Burman allowed Asha Bhosle to flourish. Asha is Lata's younger sister and her main playback singing rival Geeta Dutt was going through a difficult marriage with Guru Dutt who wanted to restrict her singing only to his movies.
Bollywood is such a key part of Mumbai and Lata ruled 50s, 60s, 70s, 80s in Bollywood. Here are more stories about Lata.
Lata the trendsetter Vividha Bharti tradition of announcing singer name was started due to Lata.