Unseeded Yuki battled past his opponent from Bosnia and Herzegovina 7-5 7-5 in the second round of the USD 75000 hard court event.
The Indian saved five of the seven breakpoints he faced and broke his rival four times in the match which lasted one hour and 58 minutes.
Only Indian left in the far, Yuki next faces top seeded Ukrainian Sergiy Stakhovsky, who faced stiff resistance from Karim-Mohammed Maamoun before prevailing 6-4 7-6(5).
Ramkumar Ramanathan, Vishnu Vardhan and Prajnesh Gunneswaran had all lost in the first round.