New Delhi: A Delhi court on Friday rejected the bail petition of J P Singh, the arrested director of a private firm for his alleged role in a corruption case involving award of a contract to upgrade the city's street lighting before the 2010 Commonwealth Games to his company.

Special CBI Judge Pradeep Chaddah denied bail to Singh noting that his earlier plea too had been rejected on July 2, 2011 and there was no change of circumstances to grant him bail now.

The illegal contract incurred a loss of Rs 1, 42, 83,000 to the exchequer.

Singh, along with Director T P Singh, MCD Superintendent Engineer D K Sugan, Executive Engineer O P Mahala, Accountant Raju V and civic body's tender clerk Gurcharan Singh are accused of corruption in upgradation of the city's street lighting system before the 2010 games.

The court had on March 12 framed charges against Singh and others for criminal conspiracy, cheating and forgery under the Indian Penal Code (IPC) and various provisions of the Prevention of Corruption (PC) Act.