At Rs 2,685 crore for 1MHz pan-Indian spectrum, reserve price would be 52% higher than that of 1,800MHz band
The company faces $3-bn payout to Econet Wireless.
Last month, German lender said it was co-operating with regulators in global foreign exchange probe.
Tata Power sets up camps to explain the benefits of switchover for low-end consumers from their current supplier.