The new railway link project between Katra-Banihal is one of the current, most significant Indian projects aiming to join the Kashmir valley with the whole Indian railway network. The T-74R tunnel, going from km 125+310 to km 133+910 (new alignment chainages), is being excavated between the right side of the Bishlari river valley (roughly 5km downstream and southward of Banihal) and the last 5km of the left hillside of its tributary, the valley of the Mahumangat Nallah.The tunnel passes through heterogeneous geology which was highly deformed and having high squeezing property likelihood of heavy water inflow in the limestone zone with heavy overburden. New Austrian Tunnelling Method (NATM) was Preferred over TBM. The New Austrian Tunnelling Method includes a number of techniques for safe tunnelling in rock conditions in which the stand-up time is limited before failure occurs. This paper highlights the various techniques of construction of the tunnel (T-74R) in rugged Himalyan Range.