Shares of Sigma Advanced Systems rallied nearly 5% on Tuesday to an intraday high of Rs 861.30 on the NSE after the company secured a USD 102.23 million order, worth approximately Rs 973 crore, from a NATO customer for the manufacture and supply of Base Bleed (BB) Units.According to the company’s exchange filing, the order is scheduled to be executed over 12 months. It marks a significant milestone in Sigma’s strategy to expand its capabilities across the 155 mm artillery ammunition manufacturing value chain.The order strengthens Sigma’s position in the artillery ammunition manufacturing ecosystem and advances its efforts to build comprehensive in-house manufacturing capabilities for advanced 155 mm artillery ammunition.12 lakh croreThe company said the addition of Base Bleed Units builds on its existing capabilities in 155 mm artillery shells and fuzes as it continues to strengthen its defence manufacturing operations.