New Delhi, Sep 6 (IANS): Delhi Police Saturday filed a supplementary chargesheet in a court here in the maid torture-and-death case against former parliamentarian Dhananjay Singh and his wife Jagriti Singh.

Delhi Police filed the chargesheet containing Forensic Science Laboratory (FSL) report in a magisterial court here.

The sessions judge had pulled up Delhi Police for not taking the case seriously.

The arguments for framing of the charges in the case could not begin Tuesday as the Forensic Science Laboratory (FSL) report was not filed.

The court had then directed the joint commissioner of police to appear in the court Sep 24, the date fixed for further hearing, and explain the delay in filing the forensic report.

Dhananjay Singh, a former MP from Uttar Pradesh's Jaunpur, along with his wife Jagriti was charge-sheeted Feb 1 for various offences, including destruction of evidence and abetting murder and attempt-to-murder.

He and his wife, who is a dental surgeon in a government hospital, were arrested in November 2013.