"Ik roz mein har aankh se chhup jaoon ga lekin
Dharkan mein samaya huwa hardil mein rahoonga
Duniya mere geeton se mujhe yaad karey gi
Uth jaoonga phir bhi is mehfil mein rahoonga"
Opee worked extensively with Geeta Dutt, Asha Bhosle, and Mohammed Rafi, and was instrumental in building their careers. Some Bollywood observers maintained that Asha Bhosle was his find and that he groomed her specially for his tunes. Many of his compositions which Asha sang are memorable and have a contemporary flair.
Opee never worked with Lata Mangeshkar, the melody queen in Bollywood music. After a breakup with Mohammed Rafi, Opee started to work with Mahendra Kapoor, an upcoming male singer. He also worked in the movie, Sambandh, with Mukesh, who was the favorite playback singer of Raj Kapoor. Based on one of Rabindranath Tagore's Bengali compositions, Opee composed the song, Chal Akelaa, Chal Akelaa, sung by Mukesh. The same movie also included a memorable baritone rendering by Hemant Kumar, who was both a top-notch singer and a renowned Bollywood composer in his own right. Like many other movies for which Opee provided scores, Sambandh is remembered mostly because of its music.
Mahendra Kapoor sang Opee's compositions, displaying much depth of feelings, and provided cadence and rhythm to Opee's style. His rendering of the song for Dharmendra, Badal Jaaye Agar Maali, Chaman Hotaa Nahi Khaali in Bahaaren Phir Bhi Aayengi was an instant hit.
Opee recognized very early in the career of Kishore Kumar his talent as a singer. Both movies, Baap Re Baap and Raagini contain many Kishore Kumar hits in the inimitable Opee style. Regrettably, a cordial relationship between Opee and Kishore Kumar did not endure. Opee did produce great hits with Shamshad Begum, notably "Kajara Mohabbatwala" even when she was not in demand. In the black-and-white movie era, Madhubala, who could provide a distinct, stylized performance for Opee's songs became Opee's favorite heroine. After her untimely death, heroines like Vyjayanthimala, Mala Sinha, Padmini, Asha Parekh, and Sharmila Tagore lip-synced several of the Opee-Asha Bhosle numbers, and a large number of those songs gained high popularity.
Opee and Asha Bhosle parted ways in 1974, and that parting impacted Opee for the rest of his life. After the breakup, he tried to work with several good singers, including Dilraj Kaur, Alka Yagnik, Krishna Kale, Vani Jayaram, and Kavita Krishanmurthy, but the magic in his work somehow seemed to have long gone. Almost until his last days, he would often refer to Asha as a singing sensation. Embittered Asha, on the other hand, practically ignored him after the breakup, and held the thought that she was beholden to no single composer.
On the part of Asha, she went on to become a widely popular singer while working with many other composers, including, most notably, R D Burman, but the special lilt in her voice which was there when she sang Opee's compositions did not seem to be there anymore.
Majrooh Sultanpuri and Sahir Ludhianvi wrote some memorable lyrics for some of Opee's earlier compositions such as in Naya Daur. However, generally keeping clear of established song writers of his time, Opee experimented with different upcoming lyricists like Jan Nisar Akhtar, Qamar Jalalabadi, Shamshul Huda Bihari, and Ahmed Wasi, who tried to write the lyrics that would match the sensuous tunes which Opee would have in his mind. In the tradition of the great composers in India, Opee was fond of the poetic flourish of the Urdu language for his more serious songs. The Rafi rendering, Dilaki Aawaaz Bhi Sun, Mere Fasanepe Na Jaa in Humsaya is one of Opee's haunting scores.
Opee's wife, Saroj Mohini Nayyar, is an accomplished lyricist. She wrote the C H Atma song, Preetam Aan Milo, which launched Opee into the big league of Bollywood composers.
Opee started the tradition of assigning to comedians full three-minute long songs, some of which proved even more popular than the songs sung by the heroes themselves. These supporting actors also received excellent reviews. Thus, comedian Om Prakash sang Opee's composition, Churi Bane Kanta Bane Oo My Son in Jaali Note. Comedian Johnny Walker sang Opee's popular song, Aye Dil Hai Mushkil Jeena Yahaan in C.I.D., and Main Bambaika Baaboo, Naam Meraa Anjaanaa in Naya Daur. There was later a movie titled Johnny Walker where Johnny Walker himself was the hero. Along with some other numbers in the last movie, Asha Bhosle/Gita Dutt's, Thandi Thandi Hawaa in it is memorable.
Rhythm was Opee's specialty. His spirited composition, Yeh Desh Hai Veer Jawaanonkaa featuring Dilip Kumar and Ajit in Naya Daur (1957) is an all-time favorite in India even after fifty years. Lata Mangeshkar once said that her most favorite Opee-Asha Bhosle tune was Aao Huzoor Tumko Sitaaromein Le Chale in Kismet. The last Opee composition which Asha sang was Chainase Humko Kabhi. It was meant to be included in the movie, Pran Jaye Par Vachan Na Jaye (1974), but it was dropped in the final version of the movie. However, it became an Opee classic, and it won Asha a Filmfare Best Playback Singer Award.
According to some critics, Opee did not choose his movies well and wasted some of his superb tunes on B-grade actors like Joy Mukherjee, Biswajeet, and Babita. Though Opee was still active in his musical career in the 1960s and '70s, to the regrets of his fans, Opee did not compose music for the then superstar Rajesh Khanna or budding Amitabh Bachchan. Opee also did not provide music for movies starring heroes of the day like Sanjeev Kumar, Shashi Kapoor, and Jitendra. Again, with the exception of Rekha, Opee did not compose music for heroines like Hema Malini, Rakhee, or Zeenat Aman, who were all well known around the time he could have made a re-entry as a top composer.
Another Bollywood maestro, S D Burman, was far more successful as a composer. Twenty years Opee's senior, the mild mannered Sachin Dev Burman composed exquisite tunes for a succession of Bollywood stars despite a long-lasting breakup with Lata Mangeshkar. With Asha Bhosle singing for Nargis his mellifluent composition, Koi Aayaa Dhadkan Kehti Hai in Lajwanti, S D Burman had all but declared that he was Asha's new mentor. Opee held Burman in high esteem and was reported to have said that the Burman-Lata solo for Waheeda Rehman in Guide, Aaj Phir Jeeneki Tamannaa Hai, was the best ever song in Hindi for its sheer evocative beauty and matching lyrical lines. (Unfortunately, the recording of that song was of mediocre quality.)
Apart from Hindi films, Opee also composed music for a few South Indian movies, including Neerajanam in Telugu. Even though Neerajanam was a flop at box office, the music was such a rage that it created a record for the most sold album in south until over taken by A.R.Rahman's Roja.
Opee faded from the Bollywood scene in early 1970s, though he made a comeback attempt in the 1990s.