Agartala: Oil giant ONGC along with a Vietnamese company will launch joint exploration for oil in the South China Sea despite objections from China, a top company official said on Tuesday.

“There is nothing wrong in it. ONGC-Videsh has got this asignment through an international bid and we will go ahead with our exploration work with a Vietnamese oil company,” ONGC Chairman and Managing Director Sudhir Vasudeva said here.