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's singing career spanned over three decades, encompassing various genres like Bollywood, classical, contemporary ghazals, bhajans, qawwali, and Sufi songs. He collaborated with prominent playback singers Lata Mangeshkar, Asha Bhosle, and Alka Yagnik under the guidance of renowned music directors.