His father, Abdur Razzaq, was a veteran national leader from Bangladesh Awami League and leading organizer of liberation war in 1971.

After the attempted assassination on the senior leadership of Bangladesh Awami League on 21st August 2004 by the then regime and Islamic fundamentalist group JMB where Nahim’s father along with the highest leadership of the then opposition party was seriously injured, Nahim came back to Bangladesh and started active activism.

Nahim began his political career with Bangladesh Awami League being the organising secretary of Damudya Poura Sabha unit in 2008.

[15] Nahim is the founding Convener[16] of National Youth Platform called YOUNG BANGLA which has steered the party’s policy of youth engagement under the able leadership of the chairperson of CRI (Centre for Research and Information) Sajeeb Wazed along with members of the trustee Saima Wazed, Radwan Mujib Siddiq and Nasrul Hamid.

Nahim also holds responsibility as the Co-Chair[18] of UNYSAB (United Nations Youth and Students Association of Bangladesh) which promotes volunteerism under UN charter.

[24] Razzaq have received the Junior Chamber International (JCI) – TOYP Top 10 Outstanding Youth Person Award in 2015 in Bangladesh[25]