Shares of Oil and Natural Gas Corp. rose to their highest level in over five years on Thursday after the company announced an investment of Rs 1 lakh crore to set up two petrochemical plants.”We have plans to invest Rs 1,00,000 crore by 2028 or 2030 in two projects in two separate states,” D Adhikari, chief of joint ventures and business development, said at an investor call on Wednesday on ONGC’s second quarter earnings. “Our plan i…