Who was the first Indian member of the Indian Civil Service?

Who was the first Indian member of the Indian Civil Service? Why his wife remembered in the history of clothing?

Satyendranath Tagore, brother of Rabindranath Tagore was the first Indian member of the Indian Civil Service.
His wife Jnanadanandini Devi introduced the Parsi style of wearing the sari pinned to the left shoulder with a broach and worn with a blouse and shoes.
This style was known as Brahmika sari. It was quickly adopted by Btahmo Samaji women and later by non-Brahmos also.