Back at home, Raghu makes friends with Prakash and chances upon his family photograph which surprisingly includes his mother Saradha, who as far as he knew had no relations.

How Raghu eventually reunites the separated family and weds Malavika forms the crux of the film.

[2] The producers initially approached Laila to play the female lead; however she refused to commit to any other films until the release of her Kallazhagar.

[3] The film began its shoot in late 1998 with scenes being canned in Australia and in Christchurch, New Zealand, as well as India.

[citation needed] Unnai Thedi received positive reviews from K. N. Vijiyan of New Straits Times,[6] and D. S. Ramanujam of The Hindu.