What is the name of the first survey vessel to be based in the Southern Naval Command, which is the third ship of the Survey Vessel class?

Who composed the national song of India, Vande Mataram, whose 150th anniversary was celebrated on 7 November 2025?

World Science Day is celebrated on which of the following days? 

Swachh Survekshan 2025: Which city has been declared the dirtiest city in India?

Who among the following has been appointed as the brand ambassador of Paradip Phosfests?