New Delhi, Mar 12 (ANI): Secretary of US Department of Energy, Ernest Moniz, said private sector and business-to-business collaborations with India are nation’s primary focus, while addressing a conference in New Delhi. Moniz is on an official visit to India to resume Indo-US energy dialogue, which was postponed after tension over the arrest and strip search of female diplomat in New York, Devyani Khobragade, suspected of visa fraud in December last year.