ISHWARDI (Pabna): Upazila Chairman freedom fighter Alhaj Naib Ali Biswas, Municipal Mayor Isaac Ali Malitha, Upazila Executive Officer PM Imrul Kayes, Assistant Commissioner (Vm) TA Rahsin Kabir, Vice Chairman Abdus Salam Khan and Atiya Ferdous Kakli paid tribute at Central Shaheed Minar in the first hour on Tuesday marking the International Mother Language Day.