Yes, You can apply RTI to Hindustan Petroleum Corporation Limited (HPCL). HPCL is an Indian oil and natural gas company with its headquarters at Mumbai, Maharashtra. Oil and Natural Gas Corporation, also the promoter of the company, owns 51.11% shares in HPCL and others are distributed amongst financial institutes, public and other investors.
Since it is a Public sector Company, therefore, it comes under the ambit of section 2(h) of the RTI Act'2005, which has the definition of Public Authority. Hence, we can file RTI to Hindustan Petroleum Corporation Limited (HPCL).
For further assistance and to have a better understanding on filing RTI, you may visit the below mentioned link: