India, Feb. 22 -- An assistant commissioner with the Central Board of Excise and Customs (CBEC), his younger sister and his mother were found dead at his official quarters in Kochi, police said on Friday.

The 42-year-old officer, originally from Ranchi in Jharkhand, was employed with the GST wing of the government department in Kochi. His sister was an officer with the Jharkhand Administrative Service (JAS) and the first-rank holder in the PSC exams. She was 35 and their mother 80 years old.

While the local Thrikkakara police has filed a case of unnatural death, police suspect it to be a case of suicide. The remains have been sent for post-mortem at the Ernakulam Government Medical College Hospital and the reports are expected by Saturd...