After joining the Congress at its rally near Adalaj village in Gandhinagar district, Hardik in his address asked the gathering if it was the right decision.
To this, the people said, "Yes".
Targeting Prime Minister Narendra Modi, Patel said when the Congress decided to postpone its rally, earlier scheduled for February 28, following the terror attack in Pulwama last month, the PM was busy addressing gatherings across the country.
The 25-year-old Patidar leader praised Rahul Gandhi, saying the Congress president is "honest".
"People ask me why I chose the Congress and Rahul Gandhi. I chose Rahul Gandhi because he is honest. He does not believe in working like a dictator," he said.
On BJP's charge of dynastic politics in the Congress, Patel said there was nothing wrong if a politician's son wanted to be join the same field to serve people.