The Indian badminton star who has won multiple World Championships titles is:

P.V. Sindhu
Saina Nehwal
Saina Mirza
Jwala Gutta

The Indian badminton star who has won multiple World Championships titles is P.V. Sindhu. She has won the World Championships title twice, in 2017 and 2021. She is also the first Indian woman to win an Olympic silver medal in badminton, which she did in 2016.

Saina Nehwal is another Indian badminton star who has won multiple World Championships medals. She has won a bronze medal in 2010 and a silver medal in 2015. She is also the first Indian woman to win a Super Series Premier title.

Saina Mirza is an Indian professional tennis player. She has won six Grand Slam titles, three in women’s doubles and three in mixed doubles. She is the first Indian woman to win a Grand Slam title in singles, doubles, or mixed doubles.

Jwala Gutta is an Indian professional badminton player. She has won the World Championships title in mixed doubles with V. Diju in 2010. She is also the first Indian woman to win a Super Series Premier title.

P.V. Sindhu is the correct answer to the question. She is the Indian badminton star who has won multiple World Championships titles.