Hyderabad: The Directorate of Enforcement (ED), Hyderabad Zonal Office, has filed a charge sheet before the PMLA Court at Rangareddy against M/s Metalloids Technologies Private Limited (MTPL), its Managing Director Jayant Biswas, and his wife Mousumi Biswas, an official statement said on Saturday. The court on January 28 took cognisance of the charge sheet filed.