He sang duets alongside playback singers Lata Mangeshkar, Asha Bhosle and Alka Yagnik, under music directors Khayyam, Laxmikant Pyarelal, Kalyanji Anandji, Bappi Lahiri, Anu Malik and Dilip Sen-Sameer Sen. In a career span stretching over thirty years, Anwar sang a variety of songs including filmi songs, classical songs and contemporary ghazals, bhajans, qawwali, and Sufi songs.
Anwar collaborated with playback singers Lata Mangeshkar, Asha Bhosle, and Alka Yagnik on duets, working with music directors like Khayyam, Laxmikant Pyarelal, Kalyanji Anandji, Bappi Lahiri, Anu Malik, and Dilip Sen-Sameer Sen. Over his thirty-year career, Anwar sang a diverse range of songs including Bollywood, classical, contemporary ghazals, bhajans, qawwali, and Sufi music.