NEW DELHI: In yet another blow to TMC, the Enforcement Directorate (ED) has frozen Rs 440 crore in three accounts held by the party with HDFC Bank as part of its investigation into alleged laundering of Rs 160 crore of party funds through a Kolkata-based company, Carewell Aviation. The funds were allegedly used to buy an Embraer 600 aircraft and an Agusta chopper for Rs 112 crore in what ED considers to be dubious transactions.