When is 'World Mother Language Day' celebrated every year?

Johnson and Johnson has partnered with which Indian pharma company for manufacturing its COVID-19 vaccine?

Which vitamin among the following is crucial for blood clotting?

Which type of writ is not issued under Indian constitution-

Which of the following are also called the amphibians of the plant kingdom? 

With whom CSC E-Governance Services India Ltd Inked MoU to Facilitate UMANG app services at CSCs?

Which of the following materials has the least resistivity?

In the Landmark Supreme Court's decision on the basic structure of the Constitution, what is the name of the petitioner, who has died recently?