When did Urdu become the national language of Pakistan?

– by
When did Urdu become the national language of Pakistan?A. 1947
B. 1956
C. 1962
D. 1973

Urdu is the national language of Pakistan . It is the national language of Pakistan since the Pakistan is declared as the independent state at 14 August, 1947. The 1973 Constitution recognizes Urdu as Pakistan’s only national language. It also promises to make it the official language of the state.