Concept:
A news agency (or wire service) is an organization that gathers news reports and sells them to subscribing news organizations, such as newspapers, magazines, and radio and television broadcasters. India has two major historic national news agencies.
Step 1: Full Form of UNI.
UNI stands for United News of India. It was established to provide competition to the other major Indian news agency, PTI (Press Trust of India).
$\text{UNI} = \text{United News of India}$
Step 2: Historical Background.
UNI started its commercial operations on March 21, 1961. It was established by a group of newspapers that felt the need for a second news agency to ensure a diversity of news coverage. Over the decades, it has become one of the largest news agencies in Asia.
$\text{Foundation Year} = 1961$
Step 3: Scope of Service.
UNI provides news services in English, Hindi (Univarta), and Urdu. It was also the first news agency in the world to start a news service in Urdu. It has a network of correspondents in major cities across the globe and every state capital in India.
Final Answer: Option C