Oil and Natural Gas Corporation (ONGC) has made discoveries of oil and gas in OALP (Open Acreage Licensing Policy) block MB-OSHP-2017/1 in Mumbai Offshore (SW) in the Arabian Sea. ONGC said that detailed assessment of the discoveries - MBS171HAA-1 -'AMRIT' and MBS182HDA-1 - 'Moonga' is in progress.