[2] The story revolves around a rising independent music band formed by university students, exploring their family bonds, love, and conflicts, along with their patriotism inspired by Sheikh Mujib's ideals.

The film draws parallels between the courage of young people who participated in Bangladesh's Liberation War and the struggles of contemporary youth.

The main cast includes Shamol Mawla, Zakia Bari Momo, Pori Moni, Mamunur Rashid, Abul Hayat, Shahidul Alam Sachchu, Rawnak Hasan, Fakhrul Bashar Masum, and Hasnat Ripon.

To inspire the group, Partho encourages everyone to read books on Bangladesh's Liberation War and the works of Sheikh Mujibur Rahman.

It also shows George Harrison and others performing the song "Bangla Desh" at the Concert for Bangladesh in New York's Madison Square Garden, raising awareness and support for the refugees.

Later, Partho and his friends are returning home late at night with banned drinks in their car when the police stop and interrogate them.

Feeling despondent, Partho returns home and watches Sheikh Mujib's speech urging government employees to work for the welfare of the people.

In a flashback, young freedom fighters are captured, tortured, and killed by the Pakistani army during the Siddhirganj operation for refusing to cooperate.

Abul Hayat, Shahidul Alam Sachchu, and Raonak Hasan, who had previously worked with Tauquir on Fagun Haway, were cast again for Sphulingo.

Indoor scenes were shot at Nakkhatra Bari in Rajendrapur, while outdoor scenes were filmed in locations such as Madhumati Model Town, the Martyred Intellectuals Memorial, the Shitalakkhya River in Kapasia, Bangabandhu Sheikh Mujibur Rahman Agricultural University, and Kharera village in Kasba, Brahmanbaria.

Pintu Ghosh had previously worked on the music for Tauquir Ahmed's films Oggatonama, Haldaa, and Fagun Haway.

For Sphulingo, three original songs were created, along with a re-arrangement of George Harrison's "Bangla Desh," performed during the 1971 Concert for Bangladesh.

[10] The film also features songs by Lalon, Shah Abdul Karim, Hason Raja, Apel Mahmood, Khyapa Baul, and Rizvi.

[13] Sphulingo was also released internationally on 18 March 2022, in 23 theaters across the United States, distributed by Bioscope Films USA.

[citation needed] Marzia Akter from Kaler Kantho praised Tauquir Ahmed for "seamlessly blending the philosophy and thoughts of the Father of the Nation with the Liberation War of 1971 and connecting them to the current generation."

She commended the film's music, lighting, sound design, editing, and the performances of the lead actors Shyamol Mawla, Pori Moni, and Momo, as well as the supporting cast.

He lauded the performances of all actors, particularly Pori Moni for her restrained acting, and positively highlighted Tauquir and Pintu's contributions to production management and music direction.

However, he noted that the film's first half felt slow-paced, stating, "The gripping momentum that should have persisted from start to finish was somewhat lacking.