yes, it has been declared on 10th jan 2019. 

South Indian Bank has declared the result of South Indian Bank PO 2018 on January 10, 2019 for the online test. Candidates who have appeared for the South Indian Bank PO on December 29 can check their result by entering their application number, roll number and date of birth in the login window. To check South Indian Bank PO result visit https://www.southindianbank.com/Careers/careersdetails.aspx?careerid=160