Kashyap, the 2012 Olympic quarter-finalists, survived a scare from the unheralded Indonesian Tommy Sugiarto before scoring a 21-18 23-21 win at the BBD UP Academy.
Earlier, Sindhu, the women's world No. 23 and second seed in the tournament was hardly tested in her 21-12 21-14 win over Thailand's Sapsiree Taerattanachai.
In the men's semifinal, Kashyap dominated almost the entire length of the match, then lost focus in the closing session but made a timely comeback in the finish.
The clash turned dramatic at the most unexpected moment with the Indian leading 17-10 in the second game. Kashyap proved superior to the Indonesian in almost every department of the game - be it in the long rallies, court coverage and placement of shots.
The Hyderabadi led the score throughout the match except for one solitary instance when Sugiarto led 1-0 in the second game. That was all. Thereafter, Kashyap grew in confidence and the chance of the much-anticipated rearguard fightback from the Indonesian looked bleak.
However, Sugiarto inched back into the fight with some clever mix of shots and deceptive placement to restore parity at 20-20. Suddenly, the match appeared to be headed for the third game, but Kashyap was in no mood to prolong his stay on the court. He finished the match with two clever points to make it 23-21.
"I'm happy to be in the final. I wasn't pushing myself today because of my back problem.," said an elated Kashyap.
He will take on the 14th seed Thai, Tanongsak Saensomboonsuk, who beat Indonesia's Alamsyah Yunus 21-14 21-17 in the other semifinal. (More)
