"तेल एवं प्राकृतिक गैस निगम लिमिटेड": अवतरणों में अंतर

* Economic Times 500, Business Today 500, Business Baron 500 and Business Week recognizes ONGC as most valuable Indian corporate, by Market Capitalization, Net Worth and Net Profits.<ref>[http://www.ongcindia.com/profile.asp ONGC :: Investor Center :: Profile -->

 

* [http://www.ongcindia.com/hindi.asp ओएनजीसी का जालस्थल]

* [http://www.mrpl.co.in Website of MRPL]