Which death anniversary of Dr. Bhimrao Ambedkar, the principal architect of the Indian Constitution, was observed on December 6, 2025?

A. M. Saravanan passed away at the age of 86. Who was he? 

In which of the following countries were the 33rd Southeast Asian Games 2025 inaugurated?

In which city did the Indian Army hold its annual idea and innovation competition and seminar, called Inno-Warrior 2025?

At which of the following locations is the 11th India International Science Festival (IISF) 2025 being held?