In which state has a medieval Telugu inscription related to the Gajapati rulers of Odisha recently been discovered?

In which of the following cities, a handloom exhibition named Virasat Shakti was inaugurated to showcase India’s rich handloom heritage? 

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

On which of the following days is the International Day of Action for Rivers celebrated every year?

Madurai Airport located in which state has been approved to be given international status?