Gujarat: PM Modi at Police Technology Exhibition in Kevadia

Later, he administered the unity pledge to the hundreds of government personnel gathered there.

Earlier Modi tweeted: "Tributes to the great Sardar Patel on his Jayanti. His contribution to our nation is monumental."

Since 2014, October 31 is observed as the National Unity Day and people participate in the 'Run For Unity'.This will be the first birth anniversary of Patel after India abrogated Article 370 of the Constitution that gave special powers to Kashmir. In rally after rally, BJP blamed First Prime Minister Jawaharlal Nehru for this contentious Article, stating that had Kashmir been left for Patel to handle, Article 370 would not have come into existence.