BIRMINGHAM, England?- World champion Carolina Marin added the All-England Open badminton title to her growing collection on Sunday, leaving Saina Nehwal to rue a mid-match capitulation in her bid to become India's first female winner.

The 24-year-old from Hyderabad held leads of 6-1 and 10-6 in the second before the Spaniard fought back to win 16-21, 21-14, 21-7 after 62 minutes.

"I was making too many easy mistakes and was really nervous at the start, so I wanted to enjoy it after that," Marin said. "In the second game and at 11-9 down I felt there was a change and that I could win."

China's Zhang Nan and Zhao Yunlei, the world and Olympic champions, beat Tontowi Ahmad and Liliyana Natsir of Indonesia 21-10, 21-10 to clinch the mixed doubles' title.