Sadras is a fortress town located on India's Coromandel Coast in Chengalpattu district, 70 km south of Chennai in Tamil Nadu state.

An inscription found in Sadras dated to 1359 mention this place as Rajanarayanan Pattinam after a Sambuvaraya chieftain.

[2] Modern Sadras was established as part of Dutch Coromandel in the seventeenth century, which was even before center for weaving superfine muslin cloth for export besides pearl and edible oil.

[3] The magnificent Sadras Fort, built for commercial purposes by the Dutch, is a vast compound enclosing a huge granary, stables, and structures used to mount elephants.

In 2003, a major restoration of the damaged fort was carried out leading to many archaeological findings.