Thaanaa Serndha Koottam story revealed

Thaanaa Serndha Koottam (English: A gang formed by itself), is an upcoming 2018 Tamil-language heist comedy film written and directed by Vignesh Shivan and produced by K. E. Gnanavel Raja. Based on the 1987 Opera House heist and Neeraj Pandey's Special 26(2013), the film stars Suriya and Keerthy Suresh in the lead roles, with a supporting cast including Karthik, Ramya Krishnan, Senthil and Suresh Chandra Menon. Featuring music composed by Anirudh Ravichander and cinematography by Dinesh Krishnan, the film will have a worldwide theatrical release on 12 January 2018.

Story
Based on real life incidents that occurred in India in 1987-88, the storyline revolves around a group of con artists who pulled off many clever robberies during 1980s, and robbed famous businessmen and politicians by pretending to be the CBI or Income tax officers and conducting raids. On the pretext of conducting raids they would take away all the black money hoarded by them.
—Sufiyan Khan and London Mapper