The total area of Sindh is approximately 140,914 square kilometers, as per official records. The original question and answer were correct, though options were formatted for consistency.

Taxila, an ancient city in present-day Pakistan, was a significant center by 516 BC during the Achaemenid Empire under Darius I. Its prominence continued through various empires. The original question and answer were correct.

The original question listed Shah Faisal Mosque as the largest, which was incorrect. Masjid al-Haram in Mecca has always been the largest mosque globally by capacity and significance. The options were revised to include the correct answer, and the timeframe was clarified for 1990 context.

Hiran Minar, a Mughal-era monument built by Emperor Jahangir in memory of his pet deer, is located in Sheikhupura, Punjab. The original question and answer were correct.

The original question incorrectly referred to “Jahanian Jahangesht” as a grandson of Rukn-ud-Din Alam, which was factually wrong. Jalaluddin Surkh-Posh Bukhari was a Suhrawardi Sufi saint, not a direct relative of the listed figures. The question was revised to focus on his Sufi order for historical accuracy.

Jalaluddin Surkh-Posh Bukhari, a 13th-century Sufi saint, hailed from Bukhara (modern-day Uzbekistan). He migrated to the Indian subcontinent, contributing to the spread of Islam. The original question and answer were correct.

The Hub Dam, built on the Hub River, is primarily in Balochistan, near the Sindh border, and supplies water to Karachi. The original question used “NWFP” (now Khyber Pakhtunkhwa) and was updated to reflect the modern name. The answer was correct.

As of 1990, six major barrages were constructed on the Indus River in Pakistan: Guddu, Sukkur, Kotri, Taunsa, Chashma, and Jinnah. These regulate water for irrigation and flood control. The original question was correct but lacked a timeframe, which has been added for clarity.

The Communal Award, announced in August 1932 after the Second Round Table Conference, allocated separate electorates for Muslims, Sikhs, and other communities, sparking controversy. The original question and answer were correct, as no other reforms listed were announced immediately after the conference.

The First Round Table Conference was held in London from November 1930 to January 1931 to discuss constitutional reforms for India. It was attended by Indian leaders, including Muslim League and Congress representatives, but Gandhi did not participate. The original question and answer were correct.