ISLAMABAD, (Pakistan Point News - APP - 21st july,2016) : The office bearers of Pakistan National Language Movement (PNLM) headed by Dr. Muhammad Ata-Ullah Khan called on Advisor to Prime Minister on National History and Literary Heritage Irfan Siddiqui here on Thursday. Speaking on the occasion, Irfan Siddiqui said urdu was Pakistan's national language and efforts were underway for its implementation as the official language, said a press release. He said the promotion of Urdu language was our national responsibility, adding his division was devising a plan for the promotion of Urdu on national and international level. Irfan Siddiqui said the adoption of Urdu as official language in the country was an essential step to promote it. He said Pakistan and Urdu language had a profound and deep relation with each other.