Question: Special 26, also known as Special Chabbis, is a 2013 Indian period heist crime thriller film directed by Neeraj Pandey, the film is inspired by which 1987 titled event, a group posing as CBI officers executed the fake income tax investigation raid on the Opera House branch of Tribhovandas Bhimji Zaveri & Sons Jewellers in Mumbai, India?
Sentence (from "Income Tax Service, Group ‘B’"): It is the feeder service of the premier and elite Indian Revenue Service.
Relevant evidence: No