Rizwan and Irfan both suffered hamstring injuries in the third match in Rawalpindi
After the game was tied at 1-1, the Bangladesh boys held their nerve in penalties to snatch their victory.
Goalkeeper Md Mehedi Hasan was once again the star of the show. After saving two against India, the substitute saved an astonishing three against Pakistan in the final.
This is the second recent title won by the Bangladesh boys team.
They had won the Under-16 tournament in 2015.