Rajinimurugan faced significant delays, upon its release, due to the financial problems faced by the production house. Initially, the film slated to release on 17 July 2015, coinciding with the Ramzan weekend. However, the release was postponed to avoid clash with Dhanush-starrer Maari, and was later scheduled to release on 17 September 2015, coinciding with Vinayagar Chathurthi. However, the financial disputes between the producers and distributors, led to postpone the release of the film on 1 October 2015, which was later delayed due to the release of Vijay-starrer Puli. The plans to release the film on 21 October 2015, during the Dusshera festival was also failed. Finally, the makers announced that the film will release on 4 December 2015. The makers went on with the film's promotion in November 2015, however, the release was pushed further, due to the 2015 South Indian Floods. Later, the film was scheduled to release on 14 January 2016, coinciding with the Pongal weekend, and also clashing with other releases Gethu, Kathakali and Thaarai Thappattai.
