1. Asst. Dir., Structural Engineering Research Ctr., C.S.I.R. Campus, Taramani, Chennai–600 113, India.
2. Asst. Dir., Structural Engineering Research Ctr., C.S.I.R. Campus, Taramani, Chennai, India.
3. Deputy Dir., Structural Engineering Research Centre, C.S.I.R. Campus, Taramani, Chennai, India.