Kuch leading Indian companies, jaano kahan huyi yeh shuru

Which of the following Indian companies has been recognised as one of the World's most Ethical Companies by the Ethisphere Institute in February 2019?

Which one of the following Indian company has recently acquired African mobile service operations in fifteen countries from Zain ?

China recently objected the participation of an Indian company in..its joint venture with another country for offshore oil exploration. Which one among the following is that country?