Sources said however that a final decision on valuation will be taken by the department's joint pricing committee.
On June 30, the department had rejected the sole bid of Rs 1.09 crore offered by the United Arab Emirates-based aviation support firm Alna Aero Distributional Finance Holdings, against a reserve price of Rs 152 crore.
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"The Bombay High Court has given its nod to go in for a second round of auction which is likely to be held on August 21," the source said.
According to the official, the department may consider bringing down its reserve price this time so as to attract more bidders.
"The department is considering to lower the reserve price to attract more bidders. But a decision on this will be taken by the joint pricing committee of the department which may happen within 10 days," the source said.
The UAE company had deposited the earnest money of Rs 1 crore as per auction conducted by the department's official auctioneer, MSTC.
The plane was attached by the Service Tax Department in December 2013.