Seriously, how difficult would it be to simply hide a video camera and record Sudha's true intentions? These days pretty much every phone has that capability. Yet everybody in LM just sits on their butts and hopes that Anami somehow will one day see what Sudha really is.
There are only about a MILLION ways in which Satrupa can expose Sudha but yet the writers have written her as completely dumb. Obviously the writers just want to drag the serial for as long as possible without actually advancing the story.
It seems that no matter how technologically advanced the whole world gets, Indian TV Soaps are still stuck in the 1960s. Still using the same boring old stories that are completely obsolete.