Olympic bronze medallist Saina didn't have to break much sweat as she disposed off fourth seed Nichaon Jindapon of Thailand 21-10 21-16 at the Babu Banarasi Das Indoor Stadium.
The 24-year-old will take on the winner of the match between two-time World Championship bronze medallist P V Sindhu and reigning World Champion Carolina Marin of Spain.
World No 5 Srikanth also continued his rampaging form and entered the finals for the second successive time with a hard- fought victory over compatriot H S Prannoy, who had clinched the Indonesia Masters last year.
In doubles, it was curtains for fifth seeds Manu Attri and B Sumeeth Reddy as they were defeated by fourth seeds Vladimir Ivanov and Ivan Sozonov of Russia 12-21 18-21.