Complex sentence: Saravanan reveals to Senthil and Viswanathan that Ganga suffers from split personality, how she became affected by it and how she took up Chandramukhi's identity.
Split into simpler sentences: Saravanan reveals to Senthil and Viswanathan that Ganga suffers from split personality disorder. Saravanan explains to them how she became affected by it and how she took up Chandramukhi's identity.