The CBI has led a massive countrywide crackdown on narcotics networks in coordination with the NCB, Interpol and police in multiple states, leading to the arrest of 175 alleged drug peddlers, officials said Thursday.

As many as 127 FIRs have been filed by the agencies involved in 'Operation Garuda' which started earlier this week to "disrupt, degrade and dismantle" drug networks with international linkages, CBI said in a statement.