Pakistani journalist with the Express Tribune named Bilal Farooqi was arrested by the Defence police from Defence Housing Authority (DHA) neighbourhood area in Karachi.
The FIR filed by the retired naval officer stated that he was attacked by Shiv Sena workers earlier in the day for sharing a cartoon that had taken a dig at Uddhav Thackeray.
Sharing the 'offensive' cartoon, the BJP MP said he enjoyed the cartoon of a "woman-bullying, veteran-beating shameless opportunist-in-chief" Uddhav Thackeray.
India had signed a deal in 2010 under the UPA regime to buy 12 AgustaWestland AW101 helicopters for the service of the Prime Minister, the President and other VVIPs.