On which of the following days is Ordnance Factories Day celebrated every year?

In which of the following states a new species of Asian grass lizard named Takydromus altapanensis has been discovered?

Where was the World Boxing Futures Cup held, in which India’s Chandrika Pujari won a gold medal?

Which state government has recently launched the Lake and Air Watch initiative to address environmental problems caused by rapid urbanization? 

National Dentist Day is celebrated every year on which of the following days?