The stock plunged 9.98% to Rs 71.70 at the BSE.
On NSE, it fell sharply by 10.38% to Rs 71.65.
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The company had reported the net loss of Rs 70.46 crore for the same period of last fiscal.
The result were announced post market hours on Friday.
The net income from operations of the company during the October-December quarter of the 2015-16 declined to Rs 50.53 crore from Rs 252.02 crore in the year ago period, Pipavav Defence and Offshore Engineering had said in a regulatory filing.