DEE Development Engineers Limited, jumped 13.30% to ₹236.90 after announcing a December 2025 order book of ₹1,302.73 crore with fresh order inflows of ₹98.11 crore and cumulative FY26 order inflows of ₹867.04 crore, along with L1 orders worth ₹46.5 crore expected to be awarded soon.