Answer : 3. "दादाभाई नौरोजी"
Explanation :

1. On 6 July 1892, Dadabhai Naoroji (Liberal Party candidate) won a closely-fought election to become the first non-white to be elected to the British Parliament.

2. He also became the first Asian member of the House of Commons.

3. One of Naoroji's most prominent supporters was the famous Florence Nightingale.