Rani, Rashid Atre and M. A. Mukhtar, in the pre-independence era. When Haider moved to Bombay in 1944, Begum went with him as a member of his team, leaving behind her family and staying with her Chacha (paternal uncle). After partition, Haider migrated to Pakistan but Begum remained in Mumbai. She had no known Pakistani connection post 1947. Begum became a national star between the early 1940s and the early 1960s, having a voice different from her peers such as Noorjehan (also discovered by Haider), Mubarrak Begum, Suraiya, Sudha Malhotra, Geeta Dutt and Amirbai Karnataki. Her peak period in the Hindi film industry was from 1940 to 1955 and again from 1957 to 1968. 1946–55 Begum sang extensively for composers including Naushad Ali, O. P. Nayyar, C. Ramchandra and S. D. Burman from 1946 to 1960. Naushad acknowledged in an interview that he was indebted to Begum in reaching the top, as she was famous before he became known in the late 1940s; after his tracks sung by her became highly popular, his talent was recognised. It was Begum's solo and duet songs sung for Naushad in the late 1940s and early 1950s which made Naushad famous. After Naushad became successful he recorded songs with new singers as well in the early 1950s, but kept working with Shamshad in the late 1950s and early 1960s. Naushad chose his favourite singer Begum once again to sing four out of the twelve songs in Mother India. Begum is credited with singing one of the first Westernised songs, "Meri jaan...Sunday ke Sunday" by Ramchandra. She kept getting more offers to sing songs and was the highest paid female singer from 1940 to 1955 and again post Mother India in 1957 to 1964. In 1949, music directors S. Rajeswara Rao, M. D. Parthasarathy and Balakrishna Kalla asked her to sing "Jaiyo Jaiyo Shipayon Bazar" for P. Bhanumathi in the film Nishan, produced by Gemini Films of Madras, which became highly popular. Although Burman started composing Bengali music in 1937, he achieved national fame with tracks sung by Begum in Hindi films. Burman was not well established as a music director in Hindi films until 1946; he then asked Begum to sing in his debut Hindi film as music director, Shikari (1946), with the song, "Kuch Rang Badal Rahi". In 1949, came Shabnam, in which Burman asked her to sing duets named "Pyar Main Tumne"