Services overcame stiff challenge from Kerala before coming out 3-0 victorious to storm into the final of the 69th National Football Championship for the Santosh Trophy at Guru Nanak Stadium.
First semifinal was decided in extra time after both the sides were locked in a goal-less stalemate at the end of regulation time.
Later, Services scored all the three goals one after the other in the extra time.
Services exhibited more control at the midfield and looked in command early on. It was in the 96th minute when Services captain Anthony Chettri scored a superb goal to put his side ahead.
In the 107th minute, Rakesh Singh scored the second goal for Services and two minutes later Vivek Kumar made it 3-0.
Defending champions Mizoram will take on hosts Punjab in the second semifinal.