Drilling Rig Sagar Uday, was operating at NS platform in Mumbai High North on well number NSBX for side-tracking. The depth reached is around 1183 metres.

On 19^th July 2014 early morning, gas flow was observed from the outermost casing annulus.

The Operation has been stopped for safety reasons. Forty eight persons have been evacuated to nearby installations.

Five vessels including two Multi Support Vessels (MSVs) are on the location for any immediate support.

Crisis Management Team (CMT) of ONGC is on site. The preparation of plugging the leak is in progress.

International expert from Boots & Coots has been mobilised.