In similar cases, the telecom tribunal TDSAT had ordered DoT to clear the deal without demanding a Rs 1,499-crore bank guarantee from Bharti Airtel Ltd for its acquisition of Telenor India. DoT had then approached the apex court, which dismissed its petition in May. Earlier this month, in another setback to DoT, TDSAT has asked DoT to release Rs 2,000-crore bank guarantees that Reliance Communications had provided for OTSC charges.