The film would be made in Marathi and also dubbed in Hindi and Telegu.
Titled 'Adesh--Power of Law', the film is currently being shot at Ramoji Film City in Hyderabad and would be released in September 2013, according to Suvahhdan Angre, who plays the lead role and is also the director and producer of the film.
The movie revolves around four cases in Maharashtra in which Nikam had appeared on behalf of the state as the public prosecutor, Angre told PTI.
These cases pertain to Pakistani terrorist Ajmal Kasab who was hanged to death; the killings of Dalits in Khairlanji; the infamous Kothewadi gang-rape case and murders of children (bal hatyakand) in Miraj.
Besides, there is also a focus on actor Sanjay Dutt and Abu Salem who were tried in the 1993 bomb blast case.
Nikam was the special public prosecutor in this trial which went on uninterruptedly for 14 years.
"The message given by this film is that law ultimately catches up with the perpetrator of the crime and although a person may be highly placed in the society, he is not above the law," says 33-year-old Angre.
The film has been shot in Hyderabad, Satara district and Paud village in Pune. Before making the film, Angre said, he did research for 12 to 18 months studying about Nikam, the legal system and the cases which are being highlighted in the movie.
The shooting commenced last September and the film is now 80 per cent complete, said Angre who has assisted in directing 14 films including 'Tare Zameen Par', 'Mangal Pandey- the Rising', 'The Myth' and 'Tathasthu'.
"It is a learning process for me", says Angre, who also has a theatre background and performed in over 25 plays since his college days.