Miscreants attacked a Jubo League leader near Rajendrapur forest office in Sreepur upazila of Gazipur on Sunday.
Injured Nurul Islam Shimul, 30, organising secretary of Sreepur Upazila Jubo League, was admitted to a local health complex.
Jubo League activists blocked Dhaka-Kapasia-Rajendrapur road for one hour demanding the arrest of the attackers.