Srishti's peacock-inspired gown also won her the Best National costume award, for depicting the national bird of India.
Post Srishti's win, many took to Twitter to congratulate her.
"Congratulations Srishti Rana for making India proud," a post read.
Another said, "Srishti Rana mesmerized the jury and the audience with her poise, beauty and intelligence and came out as a winner."
Yesteryear actress Zeenat Aman was the first Indian to win the title of Miss Asia Pacific back in 1970, while model Tara Anne Fonseca was crowned winner in 1973.
Bollywood actress-procucer Dia Mirza won the title in 2000. Actress Namrata Shirodkar was named the first runner-up of the 1993 edition of the competition.