sentences:  A delegation under the leadership of the Minister of Natural Resources visited several European countries to study the status of the oil industry in those countries and to facilitate the training of Indian professionals for exploring potential oil and gas reserves.Experts from Romania, the Soviet Union, the United States and West Germany subsequently visited India and helped the government with their expertise.Soviet experts later drew up a detailed plan for geological and geophysical surveys and drilling operations to be carried out in the 2nd Five Year Plan (1956–61).