Dc of twin tunnel by shield tbm, cut and cover tb, underground ramp and four underground and balance work of nk station with entry/exits including retrieval/ls, af, ws..si and dw..of inderlok-indraprastha corridor of delhi mrts project of phase-iv.

Overhauling of different types of couplers (front automatic coupler and semi permanent coupler with or without damper) of caf stock metro trains of dmrc at dwarka depot.