The suspect, a man in his 20s, later told police that he wanted to attack women who looked happy.
Kishida replaces outgoing party leader Prime Minister Yoshihide Suga, who is stepping down after serving only one year since taking office last September.
A Group-A level government job has also been offered to the shuttler.
India won five gold, eight silver and six bronze to return their biggest ever medal haul at the Games.
The 22-year-old from Jaipur notched up a thrilling three-game win over Hong Kong's Chu Man Kai in the men's singles SH6 class final.
The 38-year-old Noida district magistrate went down fighting to two-time world champion Lucas Mazur of France in the men's badminton singles SL4 class final.
Avani Lekhara ended 28th in the qualification round of the mixed 50m rifle prone SH1 event.
Reigning world champion Pramod Bhagat claimed a historic badminton gold medal in men's singles SL3 class.
The 19-year-old Narwal shot a total of 218.2, a Paralympic record, to claim the yellow metal.
He downed Kim Min Su of Korea in a thrilling shoot-off for the men's individual recurve bronze.