New Delhi, Oct. 21 -- The Central Bureau of Investigation (CBI) has re-registered the murder case of Mansa-based anti-drug activist Parvinder Singh Jhota and initiated a thorough investigation into the matter, officials said here on Wednesday.

As part of the widening probe, the central investigating agency will examine the alleged illicit nexus surrounding how banned psychotropic substances and habit-forming pharmaceutical drugs were being openly sold at chemist shops in the region, a practice the deceased activist had vehemently opposed.

According to agency sources, a CBI team will soon take over all relevant case diaries, forensic reports, and investigation records from the Punjab Police in Mansa.

The premier probe agency is also set...