One worker died and six were injured in an explosion at Oil India's Tengakhat facility in Assam. Sarbananda Sonowal seeks compensation and a high-level probe. Dibrugarh (Assam) Union Minister of Ports, Shipping & Waterways (MoPSW) Sarbananda Sonowal spoke by telephone with the Chairman and Managing Director of Oil India Ltd. at the company’s headquarters in Duliajan to take stock of the explosion and major fire at the Tengakhat oil field’s ITF facility.