The blackmailer gets trapped

Deepthi and Subhash plot to trap Meenakshi's blackmailer. Subhash tries to be around Meenakshi to stop her from meeting the blackmailer. Deepthi stops Suresh, who follows Smurthi thinking it's Meenakshi and explains the situation to him. Later, they manage to trap the blackmailer. Who is the blackmailer?