Researchers from which of the following countries have joined the Maitri research station as part of India’s 45th Antarctic expedition?

On which of the following days is Indian Army Day celebrated every year?

On which of the following days is National Bird Day celebrated every year? 

Which state government recently announced that it will rename the Navi Mumbai International Airport after D.B. Patil?

Which of the following has launched a global initiative to become the world’s first multinational IIT?