Thief of the Blue Hill) is a 1957 Indian Tamil-language swashbuckler film[1] directed and edited by M. A. Thirumugam, produced by Sandow M. M. A. Chinnappa Thevar and written by S. Ayyaiah Pillai.

The film stars R. Ranjan and Anjali Devi, with T. S. Balaiah, K. A. Thangavelu, P. S. Veerappa, M. K. Radha, E. R. Sahadevan, Kannamba and E. V. Saroja in supporting roles.

Aware of Nagappan's plans, the good brother leaves the family home and entrusts his son to take care of his sister and her husband Thangappan.

The producer Sandow M. M. A. Chinnappa Thevar wanted to make Neelamalai Thirudan with his close friend M. G. Ramachandran starring, and the script was tailored to suit the actor's image.

To Thevar's surprise, Ramachandran did not give him call sheet dates as he was committed to several other projects, including Nadodi Mannan (1958).