I apologize for the incorrect information in my previous response. The London branch of the All-India Muslim League was not established under the presidency of Ameer Ali.

The correct answer is that the London branch of the All-India Muslim League was established in 1908 under the presidency of Aga Khan. Aga Khan, also known as Sir Sultan Muhammad Shah, was a prominent leader of the All-India Muslim League and a significant figure in the Muslim community.

Aga Khan played a crucial role in the political and social mobilization of Muslims in British India. He served as the president of the All-India Muslim League during the early years of its establishment and worked towards safeguarding the rights and interests of the Muslim community.

The establishment of the London branch of the All-India Muslim League under the presidency of Aga Khan was an important step in expanding the reach of the organization beyond India. The London branch served as a platform for political activities, discussions, and networking among the Indian Muslim diaspora in London.

The All-India Muslim League, under the leadership of figures like Aga Khan and later Muhammad Ali Jinnah, went on to play a significant role in the struggle for the creation of Pakistan, which eventually led to the partition of British India and the formation of a separate Muslim-majority nation.