He is perturbed as childless so he conducts Putrakameshti on ordinance of Sage Vashishta, with his 3 wives Kausalya, Sumitra & Kaikeyi.

Here, Vishnu with Shesha Shanku & Chakra incarnated as his 4 sons: Rama, Lakshmana, Bharata, & Shatrughna.

Parallelly, while tilling the ground, Janaka, the king of Mithila, finds the box enclosing the baby whom he rears as Sita.

Begrudged Mandhara sly maid of Kaikeyi poisons her to seek her husband, the two boons at the time of the Devasura war.

After 13 years, Rama moved to Panchavati, where Ravana's sister, Shurpanakha, entices him, and Lakshmana cuts off her nose & ears.

Being aware of it infuriated Ravana ploys to seize Sita with the aid of the Maricha, who turns into a golden deer.

Entranced by its beauty, Sita pleads with Rama to capture it when he chases it, leaving Lakshmana as a guard.

Next, Rama asks Sita to undergo an "Agni Pariksha" test of fire to prove her innocence, as he wants to eliminate the rumors surrounding her.

Sita plunges into the sacrificial fire, and Agni raises Seeta, unharmed, to the throne, attesting to her fidelity.

After Town Bus (1955), its producer M. A. Venu decided that his next venture would be Sampoorna Ramayanam,[7] based on the Ramayana, an Indian epic written by Valmiki.

[11] S. S. Rajendran was initially offered to play Bharata but declined due to his aversion to act in films based on mythology; Sivaji Ganesan was later cast in that role.

Unlike most Tamil films of that era, the songs were composed to form a part of the narrative, as opposed to being standalone segments.

[17] Madurai S. Somasundaram (Somu) was originally hired to sing a few songs, including "Veenai Kodiyudaiya" which was picturised on Ravana.

[7][19] Politician C. Rajagopalachari, who wrote the Ramayana as a serialised story in Kalki which was later published as a book, watched this film and appreciated it, particularly Ganesan's performance as Bharata.

[5][20] In a review dated 27 April 1958, the magazine Ananda Vikatan lauded Ganesan's performance, felt T. K. Bhagavathi was perfect for the role of Ravana, and called the film a must-watch.