With an excellent academic career and aim of joining the Pakistan Air Force as a fighter pilot from childhood, Marium enters into the engineering field against her will to fulfill her parents' dream.

She continuously found means to equip herself with planes and after spending a year at university she asked her parents' permission to join the Pakistan Air Force.

Reluctant of her decision, Marium's father tries to make her understand that a cadet's life is tough, especially for girls, but after seeing her determination, he agrees.

During her first visit home at her sister's marriage she finds out that her senior's plane has crashed during an operation and prepares herself for any future hazard.

She then successfully passed her first solo flight mission, and as per PAF tradition is welcomed by co-cadets throwing buckets of water on her.

Back at the base, on her first routine operational training mission, Marium boards an FT-7PG aircraft along with Squadron Leader Saqib Abbasi but during flight their plane suffers a mechanical failure.

Initially Mehreen Jabbar was associated with Urdu1 for the telefilm on the first female fighter Pilot of Pakistan, Marium Mukhtar, who died on 24 November 2015,[4] in the line of duty when her FT-7PG aircraft crashed near Kundian in Mianwali District in the northwest of Punjab,[5] and was assigned to direct the film but due to her commitments to her film Dobara Phir Se she left the project,[6] but assisted throughout the telefilm.

Director Sarmad Sultan Khoosat came on board, while Umera Ahmad wrote the screenplay for the telefilm and was produced by Nina Kashif and Urdu1 Pictures.

"[9] In order to draw more reality to the character Baloch had to attend pilot training to learn key points, she said "before the shoot, I had spent first two days with the cadets so I can adapt to their environment and body language at the Air Force Academy.

Assistant director Syed Nabeel Ali Jafri said, "We did the principal photography in late July and most of the film was shot outdoors so it was extremely difficult.

[11] On 31 August 2016, the soundtrack of Ek Thi Marium, "Pankh Laga Ke", was released online on the channel's website.

The soundtrack along with the background music for the telefilm was composed by Shani Arshad and was performed by Zeb Bangash, with all the lyrics penned by Sabir Zafar.

[13] In the closing credits of the film, the "Aye Rah-e-Haq Kay Shaheedo" song was used from the 9th season of Coke Studio performed by its featured artists.

[14] Originally performed by Naseem Begum, it was recomposed as a tribute to Pakistani soldiers on eves of the 69th Independence of Pakistan and Defense Day.

It overflows with scenes and dialogues which are deep, meaningful, endearing and emotional,"[17] and further said, "Sanam Baloch is a phenomenal actress who has always translated all of her characters on screen effortlessly.