<span style="color: #222222;">Petroleum and Natural Gas Minister Dharmendra Pradhan today said energy is the catalyst of socio-economic change. Speaking at a symposium on fuels and lubricants, he said that investment of billions of dollars in the oil and gas sector will bring in more job opportunities. <br />''<br />''He said this will lead to trickle down effect to drive socio-economic growth. He added that the sector will play an important role in the double digit growth trajectory of the Indian economy.</span><br />