Ponnukku Thanga Manasu is a 1973 Indian Tamil-language family drama film directed by Devaraj-Mohan.
The main lead actors in the movie are Sivakumar and Jayachitra, with Vijayakumar and Vidhubala also featured prominently.
The film stars Sivakumar, Jayachitra, Vijayakumar, and Vidhubala, with Manorama, K. A. Thangavelu, and M. R. R. Vasu in supporting roles.
Produced by P. Madhavan, the movie follows Ramu, a poor orphan who dreams of becoming a collector, and his rich best friend Shankar's assistance. The film also explores the contrasting worldviews of two college students, Geetha and Shanthi, who challenge each other over their beliefs.
Released on 2 June 1973, Ponnukku Thanga Manasu was remade in Malayalam as Bhoomidevi Pushpiniyayi.