The case was filed based on a complaint from a designated 'flying squad officer' on election duty of Chitradurga Assembly Constituency, T Jayanth.
In his complaint, T Jayanth alleged that Jignesh Mewani had made the remarks against PM Modi, while addressing a gathering at an event in Chitradurga last evening.
Cases were registered under IPC sections 153, 188 117 and 34, police said yesterday.
The FIR against Mewani was registered on charges of 'inciting people to foment disturbance' when the prime minister addresses a public rally in the city, ahead of the May 12 Karnataka assembly polls.
"You ask him what happened to the promise of two crore jobs every year. If he fails to give any answer, then tell him to go sleep in Himalaya or ring the Rama Temple bells," he had said.