The 2021–22 Rahmatganj MFS's season was the 89th competitive highest level season. In addition to domestic league, Rahmatganj MFS are participating on this season's edition of Federation Cup and Independence Cup. The season cover period was 1 October 2021 to August 2.
Season summary
December
On 3 December 2021, Rahmatganj began their season with a 2–3 loss against newly promoted side Swadhinata KS, in the first match of the 2021–22 Independence Cup. Philip Adjah gave Rahmatganj MFS the lead within 3 minutes, however, in the 16th minute the score was leveled by Rafał Zaborowski. In the 25 minute a goal by Sanowar Hossain, had Rahmatganj MFS finish first-half with score 2–1. In the second half scored level by Swadhinata KS Nedo Turković on 50 minutes. On 80 minutes own goal by Mohammad Al-Amin gave lead 3–2 and Swadhinata KS ensured win.
On 7 December Rahmatganj MFS were defeated 3–1 by Dhaka Abahani. On 14 minutes thanks to an own goal by Dhaka Abahani's Tutul Hossain Badsha, Rahmatganj MFS took lead, but after 4 minutes Brazilian forward Dorielton equalized the score. In the second half on 50 minutes a penalty goal by Raphael Augusto and 70 minutes penalty goal by Dorielton ended the game 3–1, resulting in the club being eliminated from the Independence Cup
On 28 December Rahmatganj MFS began their 2021–22 Federation Cup campaign with a 3–0 win against Muktijoddha Sangsad KC by FIFA Walkover laws. The match scheduled to be played scheduled date but Muktijoddha withdrew their name from the tournament. As per FIFA Walkover laws opposition club declared the winner of the match.
On 30 December Rahmatganj MFS drew 1–1 against Sheikh Jamal DC. On 7 minutes Nurul Absar goal took lead Sheikh Jamal DC and they have finished first half with lead. In the second half additional time 90+1 minutes goal by Sajidur Rahman Sajid equal the scored. Due to Muktijoddha Sangsad KC withdrawal, both teams points were equal in the group stage and referee were used penalty shoot out to the determined group champion which Sheikh Jamal DC won 5–0 goals.
January
On 3 January Rahmatganj MFS lost 3–4 goals versus Sheikh Russel KC. In the first half Rahmatganj MFS Philip Adjah two goals on 28, 45 minutes finished first half with score 2–0. In the second half fought back Sheikh Russel KC Thiago Amaral score on 63 minutes made scored 2–1. In the 82 minutes Aizar Akmatov penalty goal and Ailton Machado on 84 minutes made the score 3–2. In the 89 minutes Rahmatganj Nigerian Sunday Chizoba level the scoreline 3–3. In the extra time on 118 minutes goal by Khondoker Ashraful Islam secured Rahmatganj MFS Semi-finals place.
On 6 January Rahmatganj MFS won 2–1 against Dhaka Mohammedan in their 1st Semi-finals of Federation Cup. On 5 minutes Rajib Hossain gave lead to Dhaka Mohammedan until end half time. In the second half on 67 minutes, Philip Adjah equalised for Rahmatganj and level score 1–1 and in the additional time (90+1 minutes), after Adjah outpaced Sadekujaman Fahim, Sunday Chizoba secured Final ticket for Rahmatganj MFS.
On 9 January Rahmatganj MFS lost 2–1 goals against Dhaka Abahani in the final of the Federation Cup Bangladesh. In the first half both clubs play excellent but they wouldn't get goals until scored Dainiel Colindres on 45+1 minutes. In the second half Rakib Hossain extended the score 2–0. On 70 minutes Philip Adjah goal made scoreline 2–1 and Rahmatganj MFS finished their tournament journey will runner up trophy and Dhaka Abahani grabbed 12th Federation Cup trophy.
February
On 5 February 2022, Rahmatganj began their 2021–22 Bangladesh Premier League season with a 2–1 defeat to Chittagong Abahani.In the first half within 4 minutes, a goal by Philip Adjah helped Rahmatganj take the lead and, finished the first half with 1–0 lead. But in the second half Peter Ebimobowei goal on 52 minutes leveled the score 1–1. On 72 minutes a goal by Rubel Miya headed Chittagong Abahani into the lead, making the score 2–1. In the end, the Rahmatganj MFS players kept on attacking to find the equalizer, however, they could not succeed in salvaging a point.
On 9 February Rahmatganj MFS had their home game versus Saif Sporting Club and lost by 1–3 goals. In the first half on 16 minutes a goal by Foysal Ahmed Fahim and on 40 minutes a goal by Nigerian Emeka Ogbugh took lead before ended of half time. In the second half on 66 minutes a goal by Maraz Hossain Saif SC made the scoreline 0–3. After conceded 3 goals Rahmatganj MFS playing attacking football and on 71 minutes a goal scored by Nigerian forward Sunday Chizoba made score 1–3 until finished the game.