The inaugural session of the first Constituent Assembly of Pakistan was chaired by ___?

The inaugural session of the first Constituent Assembly of Pakistan was chaired by ___?

پاکستان کی پہلی آئین ساز اسمبلی کے افتتاحی اجلاس کی صدارت ___؟
Explanation

    on 10th August 1947, first session of the first Constituent Assembly of Pakistan was held at Sindh Assembly Building Karachi.

On 11th August 1947 Quaid-i-Azam Muhammad Ali Jinnah was elected as the first Speaker/President of Pakistan.

On 11th August 1947 the National Flag was approved by the Assembly.

The inaugural session of the first Constituent Assembly of Pakistan was chaired/chairman by Mr. J.N. Mandal