Sangagiri is a Municipality in Salem district in the Indian state of Tamil Nadu.

The fort later served as a British tax storage facility for Kongu Nadu and the town developed around it.

Kongu Vellalar Gounder and Vanniar castes are the majority population in Sangagiri.

Over the past decade Logistics and related services, Cement, Steel, Spinning mills and Body building industries have developed around the town contributing to the economy.

Some famous long existent truck fleet operators from Sangagiri are SREE ROAD LINES (SRL), Sri Jayamurugan Transports,AST, SSPT, MM Roadways, KRN, Murugan, SPP, Triveni, SKP, SNR, Sankari Roadways, SPN, KKC, Simon, Sri Vari, AM TRANSPORT and MST.

SLOA also runs the fuel station with No.1 Sales in India for 8 consecutive years located on Salem main road, Sangagiri.

There is a cement plant of the renowned India Cements Limited which has a production capacity of 2000T/day and of late lorry industry in Sangagiri is fast picking up with Tiruchengode and Namakkal, places renowned for truck industry in the country.

It is not so crowdy because it is located away from the town, meanwhile people around Sangagiri requested southern railways through Salem division for more trains to halt here.