Question

Why do we stand while the flag is being hoisted, and national anthem sung​

Answer 1

Answer:

we need to give some respect to the flag and to our country that's why we stand

Answer 2

$Answer$

Whenever the Anthem is sung or played, the audience shall stand to attention. ... (2) As in the case of the flying of the National Flag, it has been left to the good sense of the people not to indulge in indiscriminate singing or playing of the Anthem.