Zafar Islam and Nishant Verma's heated argument over politics on Sardar Patel

Since 2014, October 31 is observed as the National Unity Day and people participate in the 'Run For Unity'. "Today, on National Integration Day, I am reminding every citizen of this challenge that is present in front of the country. Those who cannot win in war with us, they are challenging the unity of ours," Modi said in an apparent reference to Pakistan.

"However, they forget that despite centuries of similar efforts, no one could erase us, could not defeat our unity," the Prime Minister said while addressing the nation on the 144th birth anniversary of the first Home Minister Sardar Vallabhbhai Patel.