The court on Tuesday ordered BSES -- part of billionaire Anil Ambani's Reliance Infrastructure Ltd to pay state-run NTPC the Rs 700 crore (Rs 7 billion) it is owed by May 31.
Now, it cannot offer 3G services in pact with other telcos.
A panel of judges at the Delhi High Court set aside on Thursday the court's earlier order that had halted the execution of a government ban on top mobile phone carrier Bharti Airtel's 3G service pacts with rival carriers.
The performance is affected as bets on small- and mid-cap shares went wrong.
The police had filed charges in December against Bharti Airtel and Vodafone's India unit.