Dil Deewana depicts two love stories simultaneously. Suraj and Sri Lakshmi have been in love with each other for 5 years. But Suraj keeps postponing their marriage since he has some financial issues and this makes Sri Lakshmi part ways with him. The other story has Santosh, an aspiring filmmaker...
Satya Murthy, a college professor, gets brutally killed in front of his students. Problems arise when Jaya Chandra, a police officer who investigates the case, befriends the murderers.
The movie is based on the legend of Vysyakuladevatha, Sri Vasavi Kanyaka Parameshwari, starting from her birth to how she sacrifices herself to save the pride of the Vysya community.
Arun (Tanish) and Bulan (Remya Nambeesan) are childhood friends, who are staying with their parents in Malaysia. Arun is in love with a model Megha (Tashu Kaushik). Bulan shares a good relationship with her and she tries to patch up the couple whenever tiffs and misunderstandings arise between them.