Answer:
Bombay high.
Step-by-step explanation:
The Oil and Natural Gas Commission (ONGC) was founded in 1956 to foster the search for oil and natural gas deposits, as well as to enhance the level of output or productivity.
In 1974, the Oil and Natural Gas Commission started digging an oil well in Bombay high area with the help of Russian scientists.
Basically, the Oil and Natural Gas Commission (ONGC) in collaboration with the Russian scientists started digging oil wells and extracting mineral oil and natural gas in 1975, through the use of drillship known as Sagar Samrat. Consequently, about 9000 oil wells and 35 natural gas well were dug around the Bombay high area which significantly contributed about 38% to the level of output or production of mineral oil and natural gas in the country of India.