In which of the following countries has the Pitch Black 2026 Exercise been launched?

Which of the following state governments has announced that August 16 will be observed as Ayushman Diwas? 

With which of the following has the Ministry of Tourism signed an agreement for the digital promotion of Indian tourist destinations?  

At which of the following places was the Manas and Mahabharata International Centre for Civilizational Studies inaugurated?

On which of the following days is National Income Tax Day observed every year?