Gulati registered an authoritative 8-2 victory over Chandra, who had a solid run in the previous two rounds.
In the other semifinal, Talwar, who won both his pre-quarters and quarter-final matches without dropping a rack, defeated PSPB's Shahbaz Khan 8-5.
Gulati, striking the balls much better than his rival, coasted to an easy victory at the National Sports Club of India, Worli while on the adjacent table, Talwar dished out another classy performance to put it across Shabaaz.
Results: Semi-finals: Sumit Talwar (Chd) beat Shabaaz Khan (PSPB) 8-5, Sandeep Gulati (Dli) beat Manan Chandra (PSPB) 8-2.