India, Oct. 30 -- India is in the middle of a long naval build-up, and the shipyards building the fleet rely on a small circle of suppliers for the steel sections and welding materials that go into every hull. These inputs need certifications and approvals that take years to earn, so once a vendor is qualified, it tends to stay on the list. That keeps the supply chain less crowded and more predictable than it looks from outside.

The Nifty 50 was trading at 23,097.65, up 0.70%. Meanwhile, Sensex also rose 0.71% to 74,676.04 on Friday. Meanwhile, Shares of Krishna Defence & Allied Industries Ltd. were trading at Rs. 1,200.60, up 4.36 percent from previous close of Rs. 1,150.30. The stock opened at Rs. 1,190.00 and reached an intraday high...