Mohammad Sadiq sung with many female singers of Punjab including Surinder Kaur, Narinder Biba, Rajinder Rajan, Swaran Lata & many others including a duo with Ranjit Kaur. Most of his songs been written by famous Punjabi folk lyricist Babu Singh Maan. In his starting career he sang songs written by Inderjeet Hasanpuri & his friend Didar Sandhu. He recorded most of his songs & live performances with Ranjit Kaur for approximately 40 years. They were one of the most famous singing couples of Punjab in the 1970s and '80s. He first sang the famous folk song "Nigah Maarda Aayin Ve Mera Laung Gawacha" as duet with Bibi Surinder Kaur in late 60s written by lyricist Babu Singh Maan. Many of Punjabi singers have re-recorded his songs such as Na De Dil Pardesi Nu, Lammi Seeti Maar Mittra, Mera Laung Gawacha and Boliyaan. He also acted in few Punjabi films like #Putt_Jattan_De, #Guddo, #Patola, #Jatt_Jeona_Morh and #Tabaahi.