Mercury Himalayan Explorations Ltd (MHE) is an associate company that specializes in adventure holidays. The company was founded in 1982 as a joint venture between Mercury Travels Ltd and the legendary Indian mountaineer of Everest fame, Col. N. Kumar. MHE offers the largest trekking and adventure travel network in the Indian sub-continent. From Ladakh trekking to high altitude safaris, from Himalayan mountaineering expeditions to white water rafting down the Holy Ganges, MHE specializes in a variety of adventure sports in India.

EIH Ltd. is an associate company and a shareholder of Mercury Travels Ltd. EIH Ltd owns or manages hotels and luxury cruisers across five countries under the 'Oberoi Hotels & Resorts' and the 'Trident' brands. Internationally recognized for all-round excellence and unparalleled levels of service, Oberoi Hotels & Resorts have received innumerable awards and accolades. Trident Hotels are superior first class international hotels with contemporary facilities offering quality and value.