The Mumbai police arrested eight workers of the Maharashtra Navnirman Sena (MNS) on Friday while they were trying to distribute copies of the letter by the party chief about loudspeakers, an official said.

Thackeray had on Thursday uploaded a letter on Twitter, in which he told his party workers that he was looking at ending the issue of loudspeakers (atop mosques) permanently for which "wider support of people" would be needed.