Kolkata, July 11 -- The country's anti-money laundering agency Enforcement Directorate (ED) has filed its first supplementary chargesheet against former Deputy Commissioner of city police Shantanu Sinha Biswas in an alleged land grab and financial irregularities case.

The 114-page chargesheet includes statements given by 26 witnesses, ED sources said today.

According to the Central agency, Biswas is alleged to have colluded with Biswajit Poddar alias "Sona Pappu" and businessman Joy Kamdar in running a land-grabbing network spread across vairous parts of the eastern metropolis..

Investigators have alleged that the accused put pressure and harassed land owners by filing false complaints against them at several police stations.

The charge...