Sessions and District Judge Archan Puri visited the jail for conducting a judicial probe into the incident as Punjab Chief Minister Parkash Singh Badal had yesterday ordered a magisterial enquiry, Singh said.
He said the jail canteen suffered heavy loss as it was set ablaze by violent inmates.
Harsha Singh (65), who was facing trial under the NDPS Act and had been transferred from Muktsar jail to Faridkot jail a few days ago, died yesterday morning, triggering the violent protests by jail inmates.
Three undertrials lodged in the jail here have died due to various reasons during the past one week.
The exact cause of Harsha's death would be established after receiving postmortem report, J P Singh said.
A case has been registered against six jail inmates who started the trouble.