The last of the three had the shortest life; it was shut down sometime in the mid 1990s. That building was used as an exhibition hall for a while, but was pulled down a few years ago. Gaiety has also given way, the empty lot being used for the filming of 'Kanthaswamy' recently. Nothing remains of those two theatres, but the Crown is slightly different. It has also shut down, but it is the only one of the three that still has a part of its facade standing, just fronting the empty lot behind. It will not last many weeks, however.
Wonder if the 'Imperial', the fourth of Raghupathy Venkiah's theatres, is still standing. It is in Madurai, however, so I'll have to wait for someone from that city to let me know!