Two-time World Championship bronze medallist, Sindhu outplayed Kim Hyo Min of Korea 21-12 21-17 in the summit clash that lasted 45 minutes at the Tap Seac Multisport Pavilion.
"It was a good win. She played really well. I knew it won't be easy. She had beaten some good players coming into the finals. The scoreline might say it was a straight game win but it was tough. I am happy I could play my game and I am happy with my performance," Sindhu told PTI.
Talking about the losses this year, Sindhu said: "There are some defeats which will always bother you as a player like the loss at Commonwealth Games and Asian Games. At Glasgow, gold medal was for the taking but I could not do it.
"Also at Asian Games, I could have won but I guess that is part and parcel of the game. Good thing is that I came back to do well at the World Championship," she added.
"It is a good win for Sindhu. She played really well. I think she has been very consistent throughout the year. She beat some good players such as Michelle Li and Busanan (Ongbumrungpan) getting into the finals. The Korean also beat Sun Yu to get into final. More importantly what she showed on court was good. She was sharp," said Gopichand.
"We have seen her play in Korea. She played in the Asian Games. She had beaten P C Thulasi. We knew she is good. She had beaten some good players like (Nichaon) Jindapon. It was a tough match and a good quality match. Both the players played brilliantly," he said.