Pakistan Studies

Sindhi is considered one of the oldest languages of the region of present-day Pakistan. It traces its origins to ancient Prakrit dialects and has historical links to the Indus Valley Civilization area. While Brahui is also an ancient language, it is Dravidian in origin and distinct from the Indo-Aryan languages like Sindhi, Punjabi, and Pashto. Punjabi and Pashto are also old languages but generally considered to have developed later than Sindhi in the region. Therefore, Sindhi is widely regarded as the oldest among the given options in Pakistan.

Mian Muhammad Nawaz Sharif is the longest-serving Prime Minister of Pakistan, having served three non-consecutive terms totaling over nine years, which is longer than any other prime minister in Pakistan's history.

The first Constitution of Pakistan was enforced on 23 March 1956, officially declaring Pakistan an Islamic Republic. This constitution replaced the Government of India Act 1935 and marked an important milestone in Pakistan's constitutional history.

Dina Wadia, the daughter of Quaid-e-Azam Muhammad Ali Jinnah, visited Pakistan only twice. Her second and last visit took place in 2004 during the presidency of Pervez Musharraf.

The book "My Brother" was written by Hajra Masroor, a noted Urdu writer. The other options are prominent figures but not the authors of this book.

The Khyber Pass is featured on the reverse side of the Pakistani 10 Rupee note. It is a historic mountain pass connecting Pakistan and Afghanistan and has been an important trade and invasion route for centuries.

Muhammad Ali Jinnah was given the title 'Quaid-e-Azam' (Great Leader) in 1935, recognizing his leadership in the Pakistan Movement.

Nurul Amin was the leader of the opposition in the National Assembly of Pakistan when the 1973 Constitution was promulgated. Khan Abdul Wali Khan was a prominent political figure but not the opposition leader at that time.

The Hasni tribe is primarily located in Balochistan, Pakistan. This region is known for its diverse Baloch tribes, including the Hasni, making option D the correct answer.

Labour Day, also known as International Workers' Day, is observed globally on 1st May to honor the labor movement and workers' rights. Therefore, option C (1st May) is correct.