State General Secretary of Maharashtra Navnirman Sena, Vasant Gite and the MNS city Chief Nitin Bhosale along with ten others were arrested yesterday, in connection with an advertisement put out by the party in newspapers in Nashik, police said.
All the 12 MNS leaders have been arrested under Sections 153 (a) (b) of IPC, police added.
Meanwhile Parliament was adjourned amidst shouting slogans.
The Lok Sabha witnessed protests over attacks on north Indians in Maharashtra with members of the RJD, a key constituent of the ruling UPA, storming the well on the issue.
Rashtriya Janata Dal members Vijay Krishna, Sadhu Yadav and Ramkripal Yadav wanted safety and security to North Indians in Maharashtra in the wake of the agitation by the Raj Thackeray-led Maharashtra Navnirman Sena.
As noisy scenes continued, Speaker Somnath Chatterjee ordered laying of papers listed for the day and special mentions. As the members remained unrelenting, the Speaker adjourned the House for the day.