B Sai Praneeth became the first Indian male shuttler in 36 years to secure a medal in the BWF World Championships after a straight-game victory over Indonesia's Jonatan Christie propelled him into the semifinals here on Friday. World No. 19 Praneeth, who got the Arjuna Award this year, notched up a 24-22 21-14 win over Asian Games gold medallist and World No. 4 Jonatan in the quarterfinals.

Prakash Padukone was the first Indian to win a men's singles World Championships medal -- a bronze -- in the 1983 edition.