Martyrs day is the day when Ghandi ji was shot dead by Godse
January Thirteen
we celebrate martyrs day to respect our leaders and soldiers
You have answered your own question. Their vision was a free India.
Christain Martyrs
saheedi diwas
Martyrs' day
yes
8 July as one of the Martyrs of Shanxi 28 September of one of the Martyrs of China
they celebrate day of the martyrs, labor day, liberation day, independence day, parents day, and army day
The list of martyrs is vast. I would encourage you to do a search using the criteria you would like to see. Christian Martyrs Korean Martyrs, etc. Please see the related link below.
Red is the color of the day on feast days of martyrs.