A government spokesperson said Rashtriya Ekta Diwas would be observed every year.
He said there would be a pledge-taking ceremony in all the government offices, public sector undertakings and other public institutions.
The pledge would be taken by all officials and other employees to preserve the unity, integrity and security of the nation and also strive hard to spread this message among fellow countrymen, he said.
The vision and actions of Sardar Patel and his dedication towards ensuring the internal security of the country would be remembered on this day, he added.