The Central Secretariat – Qutab Minar corridor of Delhi MRTS is an elevated viaduct with elevated ramp of 40 m length and the Qutab Minar station. There are 30 spans with the span length ranging from 17 m to 25 m.

The superstructure system in the viaduct is of single track, double track and three track (obligatory spans) cast in situ voided slab. The piers are either circular or elliptical. The foundation adopted in viaduct portion is with pile diameter of 1 m.

The elevated Qutab Minar station has concourse level and the platform level. The track is supported on beam & slab arrangement. The columns supporting the structure are circular/ rectangular/ half elliptical. The foundation adopted is open foundation.

Assystem Stup undertook topographic survey, alignment finalisation and soil investigations as well as the detailed design of the elevated viaduct and station building.