Chief Metropolitan Magistrate Veena Rani enlarged Kumar on bail while directing him to furnish a personal bond of Rs one lakh with a surety of like amount.
The court also asked Kumar to surrender his passport with it and join investigation as and when required by the Investigating Officer (IO) of the case.
Public Prosecutor Anil Paswan opposed the bail plea of Kumar saying the investigation was going on and enlarging him on bail would hamper the probe.
Kumar was on parole after his conviction in Junior Basic Teacher recruitment scam was upheld by the Delhi High Court.
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His aide Shaukat Pasha, who is serving life sentence in Tihar jail in a murder case, was also arrested in connection with the conspiracy to kill businessman Tikka Hassan Mustafa. The police had told the court that two sharp-shooters of Pasha's gang were also arrested in the case.
He was the director of Primary Education when the scam took place and the court had relied on his testimony for the verdict.
He was initially a whistleblower but the CBI probe that followed found his involvement in the scam. As he had accumulated huge wealth, a separate disproportionate assets case was also registered against him and he was charge- sheeted.