STATE BANK OF INDIA is biggest PSU Bank in India with headquarters in Mumbai of India.

As on March 2021, SBI Employee count is 245,642.

As on 2020, State Bank Group has over 24,000 branches across the country and 198 foreign offices in 37 countries.

As on Oct-2021, STATE BANK OF INDIA  has 22,000 Domestic Branches.

ONGC is Oil and Gas Exploration and Producing PSU Sector Company with headquarters in Dehradun of India. As on 2021, ONGC has 30,105 Employees.

NTPC is India's Bigger Power Sector company with headquarters in India and with Employee Count of 19,918 as on 2021. NTPC company generates and distributes electricity. It has businesses related to power trading, gas exploration and coal mining as well.

As on 2021, NTPC total installed capacity of the company is 67,907.5 MW (including JVs) own stations include 24 coal based,  7 gas based, 1 Hydro 1 Wind 13 Solar and 1 Small hydro plant. Under JV, NTPC has 9 coal based, 4 gas based and 13 renewable energy projects.

State-Owned Oil and Gas company with headquarters in New Delhi of India. As on 2020, Indian Oil Corporation has 33,498 employees. Exploring, Refining, Pipe Line Transportation and Marketing of Oil and Gas related products is core business of IOC. More than 10 oil refineries. Markets petrol and diesel through its petrol outlets which are present across India.

POWER GRID CORPORATION OF INDIA is Electric Utility Company involved in distribution and transmission of electricity with headquarters in Gurgaon of India.

Largest Coal Producing and Mining company with headquarters in Kolkatta of India. As on 2017, approximate employee count is 310,000.

Oil and gas sector company with headquarters in Mumbai, India.

Government owned natural gas processing and distribution company with headquarters in New Delhi of India.

Bharat Electronics manufacture electronics, defense and aerospace equipment, weapon systems, communication equipment, Radars, Naval systems, Electronic warfare systems. Headquarters is in Bengaluru, India.

HPCL is Oil and Gas company with headquarters in Mumbai of India. ONGC own about 51% of shares of HPCL. HPCL today owns and operates two coastal refineries at Mumbai and Visakhapatnam with designed capacity of 7.5 MMTPA and 8.3 MMTPA respectively. Add to this a joint venture refinery at Mangalore, two cross-country pipelines and an extensive network of terminals, depots, bottling plants and aviation servicing facilities.