Shaheed Diwas [Martyr’s Day] is observed on March 23 and Jan. 30 every year [Two main dates]. The former marks the death anniversary of freedom fighters Bhagat Singh, Sukhdev Thapar, and Shivaram Rajguru. The latter marks the death anniversary of Mahatma Gandhi. There are some other regional Martyr Days as well. For details, look at...