The arrests came at the backdrop of Sena protest against the release of Shah Rukh Khan's latest film 'My Name Is Khan', following the actor's remark against the exclusion of Pakistani players from IPL.
“In the last 24 hours, a total of 1,023 Sainiks have been arrested. While 955 were picked up under the preventive action, the rest were put behind bars for different cases, including for protesting outside the theatre, vandalising screens among others," police said.
Following the Sena's fresh threat against the screening of the movie, State Reserve Police Force personnels and Home Guards will be deployed at 63 theatres.
The leaves of city policemen have been canceled to ensure a trouble-free screening of the movie, while the city police chief has issued guidelines on security arrangements to all police stations.
After disassociating themselves from the film, the Sena came back with a fresh warning against its release on Tuesday, Feb 9.
"We will not allow the movie to be released. Shah Rukh should first apologize to Bal Saheb (Thackeray) and then only we can talk with him," Sena leader Manohar Joshi said.
Earlier on Feb 9, the Sena attacked theatres where the film was due to release on Feb 12.